Photographing optical lens assembly, image capturing unit and electronic device

ABSTRACT

A photographing optical lens assembly includes, in order from object side to image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element and a seventh lens element. The first lens element has positive refractive power. The second, third, fourth and fifth lens elements have refractive power. The sixth lens element with refractive power has an image-side surface being concave in a paraxial region, wherein an object-side surface and the image-side surface of the sixth lens element are both aspheric, and the image-side surface has at least one inflection point. The seventh lens element with refractive power has an image-side surface being concave in a paraxial region, wherein an object-side surface and the image-side surface of the seventh lens element are both aspheric, and the image-side surface has at least one inflection point.

RELATED APPLICATIONS

This application is a continuation patent application of U.S.application Ser. No. 15/703,650, filed on Sep. 13, 2017, which is acontinuation patent application of U.S. application Ser. No. 15/153,529,filed on May 12, 2016, which is a continuation patent application ofU.S. application Ser. No. 14/488,106, filed on Sep. 16, 2014, the entirecontents of which are hereby incorporated by reference for whichpriority is claimed under 35 U.S.C. § 120. The U.S. application Ser. No.14/488,106, filed on Sep. 16, 2014, is a non-provisional applicationclaims priority to Taiwan Application Serial Number 103126480, filed onAug. 1, 2014, which is incorporated by reference herein in its entirety.

BACKGROUND Technical Field

The present disclosure relates to a photographing optical lens assembly,an image capturing unit and an electronic device, more particularly to aphotographing optical lens assembly and an image capturing unitapplicable to an electronic device.

Description of Related Art

In recent years, with the popularity of electronic devices having camerafunctionalities, the demand of miniaturized optical systems has beenincreasing. The sensor of a conventional optical system is typically aCCD (Charge-Coupled Device) or a CMOS (ComplementaryMetal-Oxide-Semiconductor) sensor. As the advanced semiconductormanufacturing technologies have allowed the pixel size of sensors to bereduced and compact optical systems have gradually evolved toward thefield of higher megapixels, there is an increasing demand for compactoptical systems featuring better image quality.

A conventional optical system employed in a portable electronic productmainly adopts a lens structure with fewer lens elements, such as four orfive lens elements. Due to the popularity of electronic devices withhigh-end specifications, such as smart phones and wearable apparatus,the requirements for high resolution and image quality of presentcompact optical systems increase significantly. However, theconventional optical systems cannot satisfy these requirements of thecompact optical systems.

Other conventional compact optical systems with six-element lensstructure are developed. However, the curvatures and the refractivepowers of the lens elements are improperly arranged. Thus, it isdifficult to reduce the back focal length of the optical systems wherebyit is hard to keep the optical systems compact. Furthermore, therefractive power of the lens elements adjacent to the object side isunbalanced so that the aberration is severe and the illumination isinsufficient in the peripheral region of the image.

SUMMARY

According to one aspect of the present disclosure, a photographingoptical lens assembly includes, in order from an object side to an imageside, a first lens element, a second lens element, a third lens element,a fourth lens element, a fifth lens element, a sixth lens element and aseventh lens element. The first lens element has positive refractivepower. The second lens element has refractive power. The third lenselement has refractive power. The fourth lens element has refractivepower. The fifth lens element has refractive power. The sixth lenselement with refractive power has an image-side surface being concave ina paraxial region thereof, wherein an object-side surface and theimage-side surface of the sixth lens element are both aspheric, and theimage-side surface of the sixth lens element has at least one inflectionpoint. The seventh lens element with refractive power has an image-sidesurface being concave in a paraxial region thereof, wherein anobject-side surface and the image-side surface of the seventh lenselement are both aspheric, and the image-side surface of the seventhlens element has at least one inflection point. When a focal length ofthe photographing optical lens assembly is f, a vertical distancebetween a non-axial critical point on the image-side surface of theseventh lens element and an optical axis is Yc72, a focal length of thefirst lens element is f1, a focal length of the seventh lens element isf7, and the following conditions are satisfied:0.1<Yc72/f<0.9; and|f1/f7|<3.0.

According to another aspect of the present disclosure, a photographingoptical lens assembly includes, in order from an object side to an imageside, a first lens element, a second lens element, a third lens element,a fourth lens element, a fifth lens element, a sixth lens element and aseventh lens element. The first lens element has positive refractivepower. The second lens element has refractive power. The third lenselement has refractive power. The fourth lens element has refractivepower. The fifth lens element has refractive power. The sixth lenselement with refractive power has an image-side surface being concave ina paraxial region thereof, wherein both of an object-side surface andthe image-side surface of the sixth lens element are aspheric, and theimage-side surface of the sixth lens element has at least one inflectionpoint. The seventh lens element with refractive power has an image-sidesurface being concave in a paraxial region thereof, wherein both of anobject-side surface and the image-side surface of the seventh lenselement are aspheric, and the image-side surface of the seventh lenselement has at least one inflection point. When a focal length of thephotographing optical lens assembly is f, a vertical distance between anon-axial critical point on the image-side surface of the seventh lenselement and an optical axis is Yc72, a focal length of the first lenselement is f1, a focal length of the second lens element is f2, an axialdistance between an object-side surface of the first lens element and animage surface is TL, a maximum image height of the photographing opticallens assembly is ImgH, and the following conditions are satisfied:0.1<Yc72/f<0.9;|f1/f2|<2.0; andTL/ImgH<2.20.

According to still another aspect of the present disclosure, an imagecapturing unit includes the photographing optical lens assemblyaccording to the aforementioned aspect and an image sensor, wherein theimage sensor is disposed on the image side of the optical imaging lensassembly.

According to yet another aspect of the present disclosure, an electronicdevice includes the image capturing unit according to the aforementionedaspect.

BRIEF DESCRIPTION OF THE DRAWINGS

The disclosure can be more fully understood by reading the followingdetailed description of the embodiments, with reference made to theaccompanying drawings as follows:

FIG. 1 is a schematic view of an image capturing unit according to the1st embodiment of the present disclosure;

FIG. 2 shows spherical aberration curves, astigmatic field curves and adistortion curve of the image capturing unit according to the 1stembodiment;

FIG. 3 is a schematic view of an image capturing unit according to the2nd embodiment of the present disclosure;

FIG. 4 shows spherical aberration curves, astigmatic field curves and adistortion curve of the image capturing unit according to the 2ndembodiment;

FIG. 5 is a schematic view of an image capturing unit according to the3rd embodiment of the present disclosure;

FIG. 6 shows spherical aberration curves, astigmatic field curves and adistortion curve of the image capturing unit according to the 3rdembodiment;

FIG. 7 is a schematic view of an image capturing unit according to the4th embodiment of the present disclosure;

FIG. 8 shows spherical aberration curves, astigmatic field curves and adistortion curve of the image capturing unit according to the 4thembodiment;

FIG. 9 is a schematic view of an image capturing unit according to the5th embodiment of the present disclosure;

FIG. 10 shows spherical aberration curves, astigmatic field curves and adistortion curve of the image capturing unit according to the 5thembodiment;

FIG. 11 is a schematic view of an image capturing unit according to the6th embodiment of the present disclosure;

FIG. 12 shows spherical aberration curves, astigmatic field curves and adistortion curve of the image capturing unit according to the 6thembodiment;

FIG. 13 is a schematic view of an image capturing unit according to the7th embodiment of the present disclosure;

FIG. 14 shows spherical aberration curves, astigmatic field curves and adistortion curve of the image capturing unit according to the 7thembodiment;

FIG. 15 a schematic view of an image capturing unit according to the 8thembodiment of the present disclosure;

FIG. 16 shows spherical aberration curves, astigmatic field curves and adistortion curve of the image capturing unit according to the 8thembodiment;

FIG. 17 a schematic view of an image capturing unit according to the 9thembodiment of the present disclosure;

FIG. 18 shows spherical aberration curves, astigmatic field curves and adistortion curve of the image capturing unit according to the 9thembodiment;

FIG. 19 a schematic view of an image capturing unit according to the10th embodiment of the present disclosure;

FIG. 20 shows spherical aberration curves, astigmatic field curves and adistortion curve of the image capturing unit according to the 10thembodiment;

FIG. 21 a schematic view of an image capturing unit according to the11th embodiment of the present disclosure;

FIG. 22 shows spherical aberration curves, astigmatic field curves and adistortion curve of the image capturing unit according to the 11thembodiment;

FIG. 23 a schematic view of an image capturing unit according to the12th embodiment of the present disclosure;

FIG. 24 shows spherical aberration curves, astigmatic field curves and adistortion curve of the image capturing unit according to the 12thembodiment;

FIG. 25 a schematic view of an image capturing unit according to the13th embodiment of the present disclosure;

FIG. 26 shows spherical aberration curves, astigmatic field curves and adistortion curve of the image capturing unit according to the 13thembodiment;

FIG. 27 is a schematic view of Yc61 and Yc62 of a sixth lens element andYc72 of a seventh lens element in FIG. 1;

FIG. 28 shows an electronic device according to an embodiment;

FIG. 29 shows an electronic device according to another embodiment; and

FIG. 30 shows an electronic device according to still anotherembodiment.

DETAILED DESCRIPTION

A photographing optical lens assembly includes, in order from an objectside to an image side, a first lens element, a second lens element, athird lens element, a fourth lens element, a fifth lens element, a sixthlens element and a seventh lens element. The photographing optical lensassembly has a total of seven single non-cemented lens elements withrefractive power.

The first lens element with positive refractive power can have anobject-side surface being convex in a paraxial region thereof.Therefore, it is favorable for providing proper positive refractivepower so as to effectively reduce a total track length of thephotographing optical lens assembly.

The second lens element can have negative refractive power. The secondlens element can have an image-side surface being concave in a paraxialregion thereof. Therefore, it is favorable for correcting the aberrationfrom the first lens element and improving the image quality.

The third lens element can have positive refractive power. The thirdlens element can have an object-side surface being convex in a paraxialregion thereof. Therefore, it is favorable for effectively reducing thesensitivity of the photographing optical lens assembly so as to increasethe yield rate.

The fourth lens element can have positive refractive power. Therefore,it is favorable for reducing the sensitivity with the first lens elementhaving positive refractive power so as to further increase the yieldrate.

The fifth lens element can have negative refractive power. The fifthlens element can have an object-side surface being concave in a paraxialregion thereof and an image-side surface being convex in a paraxialregion thereof. Therefore, it is favorable for correcting theastigmatism of the photographing optical lens assembly so as to improvethe image quality.

The sixth lens element can have positive refractive power. The sixthlens element can have an object-side surface being convex in a paraxialregion thereof and an image-side surface being concave in a paraxialregion thereof. The image-side surface of the sixth lens element has atleast one inflection point. Therefore, it is favorable for furthercorrecting the astigmatism of the photographing optical lens assembly.Furthermore, it is favorable for balancing the arrangement of therefractive powers so as to avoid excessive aberration and improve theimage quality.

The seventh lens element can have negative refractive power. The seventhlens element can have an object-side surface being convex in a paraxialregion thereof and an image-side surface being concave in a paraxialregion thereof. The image-side surface of the seventh lens element hasat least one inflection point. Both of the object-side surface and theimage-side surface of the seventh lens element are aspheric. Therefore,it is favorable for reducing a back focal length of the photographingoptical lens assembly so as to keep a compact size. Furthermore, it isfavorable for correcting the aberration of the off-axis so as to improvethe image quality.

When a focal length of the photographing optical lens assembly is f, avertical distance between a non-axial critical point on the image-sidesurface of the seventh lens element and an optical axis is Yc72, thefollowing condition is satisfied: 0.1<Yc72/f<0.9. Therefore, it isfavorable for controlling the incident angle of the light projectingonto the image sensor so as to keep sufficient illumination in theperipheral region of the image. Furthermore, it is favorable forcorrecting the aberration of the off-axis so as to enhance theresolution of the photographing optical lens assembly.

When a focal length of the first lens element is f1, a focal length ofthe seventh lens element is f7, the following condition is satisfied:|f1/f7|<3.0. Therefore, it is favorable for properly distributing therefractive power of the photographing optical lens assembly adjacent tothe object side so as to avoid excessive aberration.

When the focal length of the first lens element is f1, a focal length ofthe second lens element is f2, the following condition is satisfied:|f1/f2|<2.0. Therefore, it is favorable for reducing the total tracklength of the photographing optical lens assembly and correcting theaberration of the photographing optical lens assembly.

When an axial distance between the object-side surface of the first lenselement and an image surface is TL, a maximum image height of thephotographing optical lens assembly (half of a diagonal length of aneffective photosensitive area of an image sensor) is ImgH, the followingcondition is satisfied: TL/ImgH<2.20. Therefore, it is favorable forminiaturizing the photographing optical lens assembly so as to beequipped in an electronic device.

The photographing optical lens assembly includes at least three lenselements having positive refractive power among the first lens element,the second lens element, the third lens element, the fourth lenselement, the fifth lens element, the sixth lens element and the seventhlens element. Therefore, it is favorable for balancing the arrangementof the refractive powers of the photographing optical lens assembly soas to reduce the sensitivity of the photographing optical lens assembly.

When the focal length of the photographing optical lens assembly is f, acurvature radius of the image-side surface of the seventh lens elementis R14, the following condition is satisfied: 0<R14/f<0.7. Therefore, itis favorable for reducing the back focal length of the photographingoptical lens assembly so as to keep a compact size.

When the focal length of the photographing optical lens assembly is f, acurvature radius of the image-side surface of the sixth lens element isR12, the following condition is satisfied: 0<f/R12<5.0. Therefore, it isfavorable for balancing the arrangement of the refractive powers of thephotographing optical lens assembly so as to correct the aberration andimprove the image quality. Preferably, the following condition issatisfied: 0<f/R12<3.0.

When a curvature radius of the object-side surface of the seventh lenselement is R13, the curvature radius of the image-side surface of theseventh lens element is R14, the following condition is satisfied:0<(R13−R14)/(R13+R14)<1.5. Therefore, it is favorable for correcting theastigmatism of the photographing optical lens assembly and keeping acompact size.

When a sum of axial distances between any two lens elements adjacent toeach other is ΣAT (a sum of an axial distance between the first lenselement and the second lens element T12, an axial distance between thesecond lens element and the third lens element T23, an axial distancebetween the third lens element and the fourth lens element T34, an axialdistance between the fourth lens element and the fifth lens element T45,an axial distance between the fifth lens element and the sixth lenselement T56, and an axial distance between the sixth lens element andthe seventh lens element T67. That is, ΣAT=T12+T23+T34+T45+T56+T67), themaximum image height of the photographing optical lens assembly is ImgH,the following condition is satisfied: 0.20<ΣAT/ImgH<0.60. Therefore, itis favorable for properly arranging the lens elements so as to keep acompact size.

When an axial distance between the object-side surface of the first lenselement and an image surface is TL, the focal length of thephotographing optical lens assembly is f, the following condition issatisfied: 0.80<TL/f<1.80. Therefore, it is favorable for adjusting thetotal track length of the photographing optical lens assembly so as tobe equipped in the compact electronic device.

When a maximum refractive index among the first lens element, the secondlens element, the third lens element, the fourth lens element, the fifthlens element, the sixth lens element and the seventh lens element isNmax, the following condition is satisfied: 1.640≤Nmax<1.750. Therefore,it is favorable for adjusting the refractive index of each lens elementso that the material of each lens element can be properly chosen.

When an Abbe number of the second lens element is V2, the followingcondition is satisfied: V2<26.0. Therefore, it is favorable forcorrecting the chromatic aberration of the photographing optical lensassembly.

When a vertical distance between a non-axial critical point on theimage-side surface of the sixth lens element and an optical axis isYc62, the vertical distance between the non-axial critical point on theimage-side surface of the seventh lens element and the optical axis isYc72, the following condition is satisfied: 0.5<Yc62/Yc72<1.5.Therefore, it is favorable for correcting the aberration of the off-axisso as to improve the image quality.

When the focal length of the photographing optical lens assembly is f,the following condition is satisfied: 3.0 [mm]<f<6.5 [mm]. Therefore, itis favorable for adjusting the focal length of the photographing opticallens assembly so as to keep a compact size.

The photographing optical lens assembly further includes a stop. When anaxial distance between the stop and the image-side surface of theseventh lens element is SD, an axial distance between the object-sidesurface of the first lens element and the image-side surface of theseventh lens element is TD, the following condition is satisfied:0.75<SD/TD<1.1. Therefore, it is favorable for obtaining a balancebetween the telecentric and wide-angle characteristics.

When a curvature radius of the object-side surface of the first lenselement is R1, a curvature radius of an image-side surface of the firstlens element is R2, the following condition is satisfied:−0.2<R1/R2<0.2. Therefore, it is favorable for correcting the sphericalaberration of the photographing optical lens assembly.

When the focal length of the photographing optical lens assembly is f,an entrance pupil diameter of the photographing optical lens assembly isEPD, the following condition is satisfied: 1.2<f/EPD<2.6. Therefore, itis favorable for providing sufficient amount of incident light withlarge aperture stop so as to emphasize an imaged object with shallowdepth of view.

When half of a maximal field of view of the photographing optical lensassembly is HFOV, the following condition is satisfied:15[deg.]<HFOV<45[deg.]. Therefore, it is favorable for providing asufficient field of view so as to obtain more of the image scene andavoiding the image distortion simultaneously.

When a central thickness of the first lens element is CT1, a centralthickness of the second lens element is CT2, the following condition issatisfied: 1.0<CT1/CT2<5.5. Therefore, it is favorable for preventingthe lens elements from unfavorable molding problem so that thethicknesses of the lens elements are more homogeneous.

When the axial distance between the second lens element and the thirdlens element is T23, the axial distance between the third lens elementand the fourth lens element is T34, the following condition issatisfied: 0.5<T23/T34<4.5. Therefore, the lens elements can be tightlyarranged so that it is favorable for reducing the total track length ofthe photographing optical lens assembly.

When the focal length of the first lens element is f1, the focal lengthof the second lens element is f2, a focal length of the third lenselement is f3, a focal length of the fourth lens element is f4, a focallength of the fifth lens element is f5, a focal length of the sixth lenselement is f6, the focal length of the seventh lens element is f7, thefollowing condition is satisfied: |f1|<|fi|, wherein i=2, 3, 4, 5, 6, 7.Therefore, it is favorable for balancing the arrangement of therefractive power of the photographing optical lens assembly so as tocorrect the aberration of the photographing optical lens assembly.

When a curvature radius of the object-side surface of the sixth lenselement is R11, the curvature radius of the image-side surface of thesixth lens element is R12, the following condition is satisfied:−2.0<(R11−R12)/(R11+R12)<0.2. Therefore, it is favorable for effectivelycorrecting the astigmatism and reducing the back focal length of thephotographing optical lens assembly.

When the focal length of the photographing optical lens assembly is f,the focal length of the first lens element is f1, the focal length ofthe second lens element is f2, the focal length of the third lenselement is f3, the focal length of the fourth lens element is f4, thefocal length of the fifth lens element is f5, the focal length of thesixth lens element is f6, the focal length of the seventh lens elementis f7, the following condition is satisfied: |f/fj|max<1.8, wherein j=1,2, 3, 4, 5, 6, 7 (That is, the refractive power of each lens element isthe ratio of the focal length of the photographing optical lens assemblyto the focal length of each lens element, and a maximum absolute valueamong the refractive powers is |f/fj|max). Therefore, it is favorablefor evenly distributing the refractive powers of the photographingoptical lens assembly so as to reduce the refractive angle of theincident light. It is also favorable for correcting the aberration ofthe photographing optical lens assembly so as to improve the imagequality.

When an Abbe number of the first lens element is V1, the Abbe number ofthe second lens element is V2, an Abbe number of the third lens elementis V3, an Abbe number of the fourth lens element is V4, an Abbe numberof the fifth lens element is V5, an Abbe number of the sixth lenselement is V6, an Abbe number of the seventh lens element is V7, and atleast three lens elements among the first lens element to the seventhlens element satisfy the following condition: V1<26.0, wherein i=1, 2,3, 4, 5, 6, 7 (For example, in the second embodiment described below,).Therefore, it is favorable for correcting the chromatic aberration ofthe photographing optical lens assembly so as to improve the imagequality.

When the vertical distance between the non-axial critical point on theimage-side surface of the sixth lens element and the optical axis isYc62, a vertical distance between a non-axial critical point on theobject-side surface of the sixth lens element and an optical axis isYc61, the following condition is satisfied: 0.30<Yc62/Yc61<1.80.Therefore, it is favorable for effectively reducing the incident angleof the light projecting onto the image sensor so as to improve theimage-sensing efficiency of the image sensor.

When the focal length of the photographing optical lens assembly is f,the focal length of the third lens element is f3, the followingcondition is satisfied: −0.5<f/f3<0.6. Therefore, it is favorable foreffectively reducing the sensitivity of the photographing optical lensassembly so as to increase the yield rate.

When the axial distance between the first lens element and the secondlens element is T12, the axial distance between the second lens elementand the third lens element is T23, the axial distance between the thirdlens element and the fourth lens element is T34, the axial distancebetween the fourth lens element and the fifth lens element is T45, theaxial distance between the fifth lens element and the sixth lens elementis T56, the axial distance between the sixth lens element and theseventh lens element is T67, the following condition is satisfied:0<(T12/T23)+(T34/T45)+(T56/T67)<3.8. Therefore, it is favorable foradjusting the axial distance between any two adjacent lens elements soas to reduce the total track length of the photographing optical lensassembly, thereby keeping a compact size.

When the axial distance between the second lens element and the thirdlens element is T23, the central thickness of the second lens element isCT2, the following condition is satisfied: 0.3<T23/CT2<3.0. Therefore,it is favorable for manufacturing and assembling the photographingoptical lens assembly so as to increase the yield rate.

When the focal length of the photographing optical lens assembly is f, acurvature radius of an image-side surface of the third lens element isR6, the following condition is satisfied: −1.0<f/R6<2.5. Therefore, itis favorable for effectively correcting the Petzval's sum of thephotographing optical lens assembly so as to improve the flatness of theimage surface.

According to the optical imaging lens assembly of the presentdisclosure, an air gap in a paraxial region is arranged between any twoof the first lens element, the second lens element, the third lenselement, the fourth lens element, the fifth lens element, the sixth lenselement, and the seventh lens element that are adjacent to each other,that is, each of the first through seventh lens elements of thephotographing optical lens assembly is a single and non-cemented lenselement. Moreover, the manufacturing process of the cemented lenses ismore complex than the non-cemented lenses. In particular, an image-sidesurface of one lens element and an object-side surface of the followinglens element need to have accurate curvature to ensure these two lenselements will be highly cemented. However, during the cementing process,those two lens elements might not be highly cemented due to displacementand it is thereby not favorable for the image quality of thephotographing optical lens assembly. Therefore, there is an air gap in aparaxial region between any two of the first lens element, the secondlens element, the third lens element, the fourth lens element, the fifthlens element, the sixth lens element, and the seventh lens element thatare adjacent to each other in the present disclosure for solving theproblem generated by the cemented lens elements.

According to the photographing optical lens assembly of the presentdisclosure, an aperture stop can be configured as a front stop or amiddle stop. A front stop disposed between an imaged object and thefirst lens element can provide a longer distance between an exit pupilof the photographing optical lens assembly and the image surface andthereby improves the image-sensing efficiency of an image sensor. Amiddle stop disposed between the first lens element and the imagesurface is favorable for enlarging the field of view of thephotographing optical lens assembly and thereby provides a wider fieldof view for the same.

According to the photographing optical lens assembly of the presentdisclosure, the lens elements thereof can be made of glass or plasticmaterial. When the lens elements are made of glass material, thedistribution of the refractive power of the photographing optical lensassembly may be more flexible to design. When the lens elements are madeof plastic material, the manufacturing cost can be effectively reduced.Furthermore, surfaces of each lens element can be arranged to beaspheric, since the aspheric surface of the lens element is easy to forma shape other than spherical surface so as to have more controllablevariables for eliminating the aberration thereof, and to furtherdecrease the required number of the lens elements. Therefore, the totaltrack length of the photographing optical lens assembly can also bereduced.

According to the photographing optical lens assembly of the presentdisclosure, each of an object-side surface and an image-side surface hasa paraxial region and an off-axis region. The paraxial region refers tothe region of the surface where light rays travel close to the opticalaxis, and the off-axis region refers to the region of the surface awayfrom the paraxial region. Particularly, when the lens element has aconvex surface, it indicates that the surface is convex in the paraxialregion thereof; when the lens element has a concave surface, itindicates that the surface is concave in the paraxial region thereof.Moreover, when a lens element has a refractive power or a focus, itindicates the lens element has the refractive power in the paraxialregion thereof or has the focus in the paraxial region thereof.Moreover, when the region of refractive power or focus of a lens elementis not defined, it indicates that the region of refractive power orfocus of the lens element is in the paraxial region thereof.

According to the photographing optical lens assembly of the presentdisclosure, an image surface of the photographing optical lens assembly,based on the corresponding image sensor, can be flat or curved,especially a curved surface being concave facing towards the object sideof the photographing optical lens assembly.

According to the photographing optical lens assembly of the presentdisclosure, a critical point on a lens surface of a lens element is anon-axial point of the lens surface where its tangent is perpendicularto an optical axis. As seen in FIG. 27, FIG. 27 is a schematic view ofYc61 and Yc62 of a sixth lens element and Yc72 of a seventh lens elementin FIG. 1. The critical point on the object-side surface of the sixthlens element is a non-axial point on the object-side surface of thesixth lens element where its tangent is perpendicular to the opticalaxis. The critical point on the image-side surface of the sixth lenselement is a non-axial point on the image-side surface of the sixth lenselement where its tangent is perpendicular to the optical axis. Thecritical point on the image-side surface of the seventh lens element isa non-axial point on the image-side surface of the seventh lens elementwhere its tangent is perpendicular to the optical axis. Specifically,the critical points mentioned above are not located on the optical axis.

According to the photographing optical lens assembly of the presentdisclosure, the photographing optical lens assembly can include at leastone stop, such as an aperture stop, a glare stop or a field stop. Saidglare stop or said field stop is set for eliminating the stray light andthereby improving the image quality thereof.

According to the present disclosure, an image capturing unit isprovided. The image capturing unit includes the photographing opticallens assembly according to the aforementioned photographing optical lensassembly of the present disclosure, and an image sensor, wherein theimage sensor is disposed on the image side of the aforementionedphotographing optical lens assembly, that is, the image sensor can bedisposed on or near an image surface of the aforementioned photographingoptical lens assembly. In some embodiments, the image capturing unit canfurther include a barrel member, a holding member or a combinationthereof.

In FIG. 28, FIG. 29 and FIG. 30, an image capturing device 10 may beinstalled in, but not limited to, an electronic device, including asmart phone (FIG. 28), a tablet personal computer (FIG. 29) or awearable device (FIG. 30). The three exemplary figures of differentkinds of electronic device are only exemplary for showing the imagecapturing device of present disclosure installing in an electronicdevice and is not limited thereto. In some embodiments, the electronicdevice can further include, but not limited to, a display unit, acontrol unit, a storage unit, a random access memory unit (RAM), a readonly memory unit (ROM) or a combination thereof.

According to the photographing optical lens assembly of the presentdisclosure, the photographing optical lens assembly can be optionallyapplied to moving focus optical systems. Furthermore, the photographingoptical lens assembly is featured with good capability in the correctionof aberration and high image quality, and can be applied to 3D(three-dimensional) image capturing applications, in products such asdigital cameras, mobile devices, digital tablets, wearable devices,smart televisions, wireless monitoring devices, motion sensing inputdevices, driving recorders, rear view cameras and other electronicimaging devices. According to the above description of the presentdisclosure, the following specific embodiments are provided for furtherexplanation.

1st Embodiment

FIG. 1 is a schematic view of an image capturing unit according to the1st embodiment of the present disclosure. FIG. 2 shows, in order fromleft to right, spherical aberration curves, astigmatic field curves anda distortion curve of the image capturing unit according to the 1stembodiment. In FIG. 1, the image capturing unit includes thephotographing optical lens assembly (its reference numeral is omitted)of the present disclosure and an image sensor 195. The photographingoptical lens assembly includes, in order from an object side to an imageside, an aperture stop 100, a first lens element 110, a second lenselement 120, a third lens element 130, a fourth lens element 140, afifth lens element 150, a sixth lens element 160, a seventh lens element170, an IR-cut filter 180 and an image surface 190, wherein thephotographing optical lens assembly has a total of seven non-cementedlens elements (110-170) with refractive power.

The first lens element 110 with positive refractive power has anobject-side surface 111 being convex in a paraxial region thereof and animage-side surface 112 being convex in a paraxial region thereof. Thefirst lens element 110 is made of plastic material and has theobject-side surface 111 and the image-side surface 112 being bothaspheric.

The second lens element 120 with negative refractive power has anobject-side surface 121 being convex in a paraxial region thereof and animage-side surface 122 being concave in a paraxial region thereof. Thesecond lens element 120 is made of plastic material and has theobject-side surface 121 and the image-side surface 122 being bothaspheric.

The third lens element 130 with positive refractive power has anobject-side surface 131 being convex in a paraxial region thereof and animage-side surface 132 being concave in a paraxial region thereof. Thethird lens element 130 is made of plastic material and has theobject-side surface 131 and the image-side surface 132 being bothaspheric.

The fourth lens element 140 with positive refractive power has anobject-side surface 141 being convex in a paraxial region thereof and animage-side surface 142 being convex in a paraxial region thereof. Thefourth lens element 140 is made of plastic material and has theobject-side surface 141 and the image-side surface 142 being bothaspheric.

The fifth lens element 150 with negative refractive power has anobject-side surface 151 being concave in a paraxial region thereof andan image-side surface 152 being convex in a paraxial region thereof. Thefifth lens element 150 is made of plastic material and has theobject-side surface 151 and the image-side surface 152 being bothaspheric.

The sixth lens element 160 with positive refractive power has anobject-side surface 161 being convex in a paraxial region thereof and animage-side surface 162 being concave in a paraxial region thereof. Thesixth lens element 160 is made of plastic material and has theobject-side surface 161 and the image-side surface 162 being bothaspheric. The image-side surface 162 of the sixth lens element 160 hasat least one inflection point.

The seventh lens element 170 with negative refractive power has anobject-side surface 171 being convex in a paraxial region thereof and animage-side surface 172 being concave in a paraxial region thereof. Thesixth lens element 170 is made of plastic material and has theobject-side surface 171 and the image-side surface 172 being bothaspheric. The image-side surface 172 of the seventh lens element 170 hasat least one inflection point.

The IR-cut filter 180 is made of glass and located between the seventhlens element 170 and the image surface 190, and will not affect thefocal length of the photographing optical lens assembly. The imagesensor 195 is disposed on or near the image surface 180 of thephotographing optical lens assembly.

The equation of the aspheric surface profiles of the aforementioned lenselements of the 1st embodiment is expressed as follows:

${{X(Y)} = {{\left( {Y^{2}/R} \right)/\left( {1 + {{sqrt}\left( {1 - {\left( {1 + k} \right) \times \left( {Y/R} \right)^{2}}} \right)}} \right)} + {\sum\limits_{i}\;{({Ai}) \times \left( Y^{i} \right)}}}},$where,

X is the relative distance between a point on the aspheric surfacespaced at a distance Y from an optical axis and the tangential plane atthe aspheric surface vertex on the optical axis;

Y is the vertical distance from the point on the aspheric surface to theoptical axis;

R is the curvature radius;

k is the conic coefficient; and

Ai is the i-th aspheric coefficient, and in the embodiments, “i” may be,but is not limited to, 4, 6, 8, 10, 12, 14 and 16.

In the photographing optical lens assembly of the image capturing unitaccording to the 1st embodiment, when a focal length of thephotographing optical lens assembly is f, a f-number of thephotographing optical lens assembly is Fno, and half of a maximal fieldof view of the photographing optical lens assembly is HFOV, theseparameters have the following values: f=3.89 mm; Fno=1.60; and HFOV=35.8degrees.

When a maximum refractive index among the first lens element 110, thesecond lens element 120, the third lens element 130, the fourth lenselement 140, the fifth lens element 150, the sixth lens element 160 andthe seventh lens element 170 is Nmax, the following condition issatisfied: Nmax=1.639.

When an Abbe number of the second lens element 120 is V2, the followingcondition is satisfied: V2=23.5.

When a central thickness of the first lens element 110 is CT1, a centralthickness of the second lens element 120 is CT2, the following conditionis satisfied: CT1/CT2=3.24.

When an axial distance between the second lens element 120 and the thirdlens element 130 is T23, the central thickness of the second lenselement 120 is CT2, the following condition is satisfied: T23/CT2=1.51.

When the axial distance between the second lens element 120 and thethird lens element 130 is T23, an axial distance between the third lenselement 130 and the fourth lens element 140 is T34, the followingcondition is satisfied: T23/T34=3.30.

When an axial distance between the first lens element 110 and the secondlens element 120 is T12, the axial distance between the second lenselement 120 and the third lens element 130 is T23, the axial distancebetween the third lens element 130 and the fourth lens element 140 isT34, an axial distance between the fourth lens element 140 and the fifthlens element 150 is T45, an axial distance between the fifth lenselement 150 and the sixth lens element 160 is T56, an axial distancebetween the sixth lens element 160 and the seventh lens element 170 isT67, the following condition is satisfied:(T12/T23)+(T34/T45)+(T56/T67)=0.76.

When a curvature radius of the object-side surface 111 of the first lenselement 110 is R1, a curvature radius of the image-side surface 112 ofthe first lens element 110 is R2, the following condition is satisfied:R1/R2=−0.04.

When the focal length of the photographing optical lens assembly is f, acurvature radius of the image-side surface 132 of the third lens element130 is R6, the following condition is satisfied: f/R6=0.18.

When the focal length of the photographing optical lens assembly is f, acurvature radius of the image-side surface 162 of the sixth lens element160 is R12, the following condition is satisfied: f/R12=1.06.

When the focal length of the photographing optical lens assembly is f, acurvature radius of the image-side surface 172 of the seventh lenselement 170 is R14, the following condition is satisfied: R14/f=0.36.

When a curvature radius of the object-side surface 161 of the sixth lenselement 160 is R11, the curvature radius of the image-side surface 162of the sixth lens element 160 is R12, the following condition issatisfied: (R11−R12)/(R11+R12)=−0.21.

When a curvature radius of the object-side surface 171 of the seventhlens element 170 is R13, the curvature radius of the image-side surface172 of the seventh lens element 170 is R14, the following condition issatisfied: (R13−R14)/(R13+R14)=0.22.

When a focal length of the first lens element 110 is f1, a focal lengthof the second lens element 120 is f2, the following condition issatisfied: |f1/f2|=0.61.

When the focal length of the photographing optical lens assembly is f, afocal length of the third lens element 130 is f3, the followingcondition is satisfied: f/f3=0.30.

When the focal length of the first lens element 110 is f1, a focallength of the seventh lens element 170 is f7, the following condition issatisfied: |f1/f7|=0.35.

When the focal length of the photographing optical lens assembly is f,the focal length of the first lens element 110 is f1, the focal lengthof the second lens element 120 is f2, the focal length of the third lenselement 130 is f3, a focal length of the fourth lens element 140 is f4,a focal length of the fifth lens element is f5, a focal length of thesixth lens element is f6, the focal length of the seventh lens element170 is f7, the following condition is satisfied: |f/fj|max=1.17, whereinj=1, 2, 3, 4, 5, 6, 7.

When the focal length of the photographing optical lens assembly is f,an entrance pupil diameter of the photographing optical lens assembly isEPD, the following condition is satisfied: f/EPD=1.60.

When a vertical distance between a non-axial critical point on theobject-side surface 161 of the sixth lens element 160 and an opticalaxis is Yc61, a vertical distance between a non-axial critical point onthe image-side surface 162 of the sixth lens element 160 and the opticalaxis is Yc62, the following condition is satisfied: Yc62/Yc61=1.13.

When the vertical distance between the non-axial critical point on theimage-side surface 162 of the sixth lens element 160 and the opticalaxis is Yc62, a vertical distance between a non-axial critical point onthe image-side surface 172 of the seventh lens element 170 and theoptical axis is Yc72, the following condition is satisfied:Yc62/Yc72=0.97.

When the focal length of the photographing optical lens assembly is f,the vertical distance between the non-axial critical point on theimage-side surface 172 of the seventh lens element 170 and the opticalaxis is Yc72, the following condition satisfied: Yc72/f=0.29.

When a sum of axial distances between any two lens elements adjacent toeach other is ΣAT, a maximum image height of the photographing opticallens assembly is ImgH, the following condition is satisfied:EAT/ImgH=0.36.

When an axial distance between the stop 100 and the image-side surface172 of the seventh lens element 170 is SD, an axial distance between theobject-side surface 111 of the first lens element 110 and the image-sidesurface 172 of the seventh lens element 170 is TD, the followingcondition is satisfied: SD/TD=0.89.

When the focal length of the photographing optical lens assembly is f,an axial distance between the object-side surface 111 of the first lenselement 110 and the image surface 190 is TL, the following condition issatisfied: TL/f=1.29.

When the axial distance between the object-side surface 111 of the firstlens element 110 and the image surface 190 is TL, the maximum imageheight of the photographing optical lens assembly is ImgH, the followingcondition is satisfied: TL/ImgH=1.73.

The detailed optical data of the 1st embodiment are shown in Table 1 andthe aspheric surface data are shown in Table 2 below.

TABLE 1 1st Embodiment f = 3.89 mm, Fno = 1.60, HFOV = 35.8 deg.Curvature Focal Surface# Radius Thickness Material Index Abbe # Length 0Object Plano Infinity 1 Ape. Stop Plano −0.445 2 Lens 1 1.861 (ASP)0.713 Plastic 1.544 55.9 3.31 3 −50.000 (ASP) 0.070 4 Lens 2 2.427 (ASP)0.220 Plastic 1.639 23.5 −5.42 5 1.376 (ASP) 0.333 6 Lens 3 5.287 (ASP)0.458 Plastic 1.544 55.9 12.81 7 21.225 (ASP) 0.101 8 Lens 4 40.356(ASP) 0.369 Plastic 1.544 55.9 17.68 9 −12.590 (ASP) 0.241 10 Lens 5−1.936 (ASP) 0.220 Plastic 1.639 23.5 −10.96 11 −2.793 (ASP) 0.035 12Lens 6 2.402 (ASP) 0.470 Plastic 1.544 55.9 11.37 13 3.656 (ASP) 0.27014 Lens 7 2.231 (ASP) 0.603 Plastic 1.544 55.9 −9.57 15 1.413 (ASP)0.500 16 IR-cut filter Plano 0.300 Glass 1.517 64.2 — 17 Plano 0.116 18Image Plano — Note: Reference wavelength is 587.6 nm (d-line).

TABLE 2 Aspheric Coefficients Surface # 2 3 4 5 6 k = 1.7990E−01−5.0000E+01 −3.7850E+01 −1.1503E+01 −2.2211E+01 A4 = 1.8688E−03−1.1834E−01 −1.6577E−01 1.0439E−01 −8.0820E−03 A6 = −1.9898E−023.6425E−01 4.0582E−01 −2.3155E−01 −5.1877E−03 A8 = 5.0054E−02−5.0161E−01 −5.1830E−01 4.9683E−01 2.7782E−02 A10 = −6.7256E−023.8340E−01 3.8206E−01 −5.6790E−01 −5.3704E−02 A12 = 4.4540E−02−1.5437E−01 −1.5562E−01 3.2180E−01 2.6543E−02 A14 = −1.1697E−022.4066E−02 2.6059E−02 −6.9334E−02 −2.2918E−03 Surface # 7 8 9 10 11 k =6.8462E+01 9.0000E+01 4.6815E+01 6.5623E−01 −3.7929E+00 A4 = 3.9608E−03−2.3105E−02 −1.1729E−01 −4.5949E−02 −1.7335E−01 A6 = −1.8838E−02−2.4258E−02 1.2332E−01 2.5817E−01 2.6799E−01 A8 = −1.2663E−02−8.3396E−03 −1.0768E−01 −4.2031E−01 −2.9972E−01 A10 = −5.5376E−032.1290E−03 −1.1621E−01 4.0009E−01 2.1850E−01 A12 = 1.5245E−04 9.0359E−073.0776E−01 −1.7201E−01 −8.0671E−02 A14 = — — −2.0573E−01 2.4454E−021.1419E−02 A16 = — — 4.5153E−02 — — Surface # 12 13 14 15 k =−1.0154E+01 −2.8867E+01 −1.2740E+00 −1.5032E+00 A4 = −4.7196E−02−4.4053E−03 −3.7988E−01 −2.8152E−01 A6 = 4.0538E−02 7.2044E−031.9026E−01 1.6649E−01 A8 = −8.2830E−02 −2.6623E−02 −5.8409E−02−7.5287E−02 A10 = 4.9781E−02 1.1357E−02 1.3532E−02 2.2737E−02 A12 =−1.8431E−02 −1.7148E−03 −2.2718E−03 −4.1787E−03 A14 = 3.1056E−037.8603E−05 2.3106E−04 4.1514E−04 A16 = — — −1.0297E−05 −1.6939E−05

In Table 1, the curvature radius, the thickness and the focal length areshown in millimeters (mm). Surface numbers 0-18 represent the surfacessequentially arranged from the object-side to the image-side along theoptical axis. In Table 2, k represents the conic coefficient of theequation of the aspheric surface profiles. A4-A16 represent the asphericcoefficients ranging from the 4th order to the 16th order. The tablespresented below for each embodiment are the corresponding schematicparameter and aberration curves, and the definitions of the tables arethe same as Table 1 and Table 2 of the 1st embodiment. Therefore, anexplanation in this regard will not be provided again.

2nd Embodiment

FIG. 3 is a schematic view of an image capturing unit according to the2nd embodiment of the present disclosure. FIG. 4 shows, in order fromleft to right, spherical aberration curves, astigmatic field curves anda distortion curve of the image capturing unit according to the 2ndembodiment. In FIG. 3, the image capturing unit includes thephotographing optical lens assembly (its reference numeral is omitted)of the present disclosure and an image sensor 295. The photographingoptical lens assembly includes, in order from an object side to an imageside an aperture stop 200, a first lens element 210, a second lenselement 220, a third lens element 230, a fourth lens element 240, afifth lens element 250, a sixth lens element 260, a seventh lens element270, an IR-cut filter 280 and an image surface 290, wherein thephotographing optical lens assembly has a total of seven non-cementedlens elements (210-270) with refractive power.

The first lens element 210 with positive refractive power has anobject-side surface 211 being convex in a paraxial region thereof and animage-side surface 212 being concave in a paraxial region thereof. Thefirst lens element 210 is made of plastic material and has theobject-side surface 211 and the image-side surface 212 being bothaspheric.

The second lens element 220 with negative refractive power has anobject-side surface 221 being convex in a paraxial region thereof and animage-side surface 222 being concave in a paraxial region thereof. Thesecond lens element 220 is made of plastic material and has theobject-side surface 221 and the image-side surface 222 being bothaspheric.

The third lens element 230 with positive refractive power has anobject-side surface 231 being convex in a paraxial region thereof and animage-side surface 232 being convex in a paraxial region thereof. Thethird lens element 230 is made of plastic material and has theobject-side surface 231 and the image-side surface 232 being bothaspheric.

The fourth lens element 240 with negative refractive power has anobject-side surface 241 being concave in a paraxial region thereof andan image-side surface 242 being concave in a paraxial region thereof.The fourth lens element 240 is made of plastic material and has theobject-side surface 241 and the image-side surface 242 being bothaspheric.

The fifth lens element 250 with negative refractive power has anobject-side surface 251 being concave in a paraxial region thereof andan image-side surface 252 being convex in a paraxial region thereof. Thefifth lens element 250 is made of plastic material and has theobject-side surface 251 and the image-side surface 252 being bothaspheric.

The sixth lens element 260 with positive refractive power has anobject-side surface 261 being convex in a paraxial region thereof and animage-side surface 262 being concave in a paraxial region thereof. Thesixth lens element 260 is made of plastic material and has theobject-side surface 261 and the image-side surface 262 being bothaspheric. The image-side surface 262 of the sixth lens element 260 hasat least one inflection point.

The seventh lens element 270 with negative refractive power has anobject-side surface 271 being convex in a paraxial region thereof and animage-side surface 272 being concave in a paraxial region thereof. Thesixth lens element 270 made of plastic material and has the object-sidesurface 271 and the image-side surface 272 being both aspheric. Theimage-side surface 272 of the seventh lens element 270 has at least oneinflection point.

The IR-cut filter 280 is made of glass and located between the seventhlens element 270 and the image surface 290, and will not affect thefocal length of the photographing optical lens assembly. The imagesensor 295 is disposed on or near the image surface 290 of thephotographing optical lens assembly.

The detailed optical data of the 2nd embodiment are shown in Table 3 andthe aspheric surface data are shown in Table 4 below.

TABLE 3 2nd Embodiment f = 3.98 mm, Fno = 1.80, HFOV = 35.4 deg.Curvature Focal Surface# Radius Thickness Material Index Abbe # Length 0Object Plano Infinity 1 Ape. Stop Plano −0.415 2 Lens 1 1.673 (ASP)0.732 Plastic 1.544 55.9 3.32 3 18.815 (ASP) 0.078 4 Lens 2 2.979 (ASP)0.220 Plastic 1.650 21.4 −6.65 5 1.712 (ASP) 0.316 6 Lens 3 7.614 (ASP)0.406 Plastic 1.544 55.9 8.84 7 −12.829 (ASP) 0.131 8 Lens 4 −13.333(ASP) 0.233 Plastic 1.650 21.4 −18.53 9 125.000 (ASP) 0.141 10 Lens 5−3.550 (ASP) 0.280 Plastic 1.639 23.5 −11.85 11 −6.890 (ASP) 0.082 12Lens 6 2.189 (ASP) 0.524 Plastic 1.544 55.9 7.25 13 4.500 (ASP) 0.331 14Lens 7 2.852 (ASP) 0.539 Plastic 1.544 55.9 −6.43 15 1.466 (ASP) 0.40016 IR-cut filter Plano 0.300 Glass 1.517 64.2 — 17 Plano 0.138 18 ImagePlano — Note: Reference wavelength is 587.6 nm (d-line).

TABLE 4 Aspheric Coefficients Surface # 2 3 4 5 6 k = 1.8100E−01−2.5097E+01 −4.2213E+01 −1.7319E+01 −7.0734E+01 A4 = 1.2161E−03−1.2617E−01 −1.5511E−01 1.1895E−01 −3.1231E−02 A6 = −2.1059E−023.5794E−01 4.0395E−01 −2.3236E−01 −1.8346E−02 A8 = 4.9825E−02−4.9464E−01 −5.1797E−01 4.9764E−01 2.9435E−02 A10 = −6.6592E−023.8623E−01 3.8718E−01 −5.6017E−01 −5.0615E−02 A12 = 4.4266E−02−1.5896E−01 −1.5285E−01 3.2592E−01 2.7953E−02 A14 = −1.1917E−022.5457E−02 2.3777E−02 −6.5309E−02 −9.7137E−04 Surface # 7 8 9 10 11 k =−6.9565E+01 9.0000E+01 −9.0000E+01 1.8511E+00 −5.1790E+00 A4 =−6.2345E−03 −2.7054E−02 −1.1638E−01 −5.4728E−02 −1.6881E−01 A6 =−2.5900E−02 −1.9293E−02 1.2364E−01 2.3223E−01 2.6813E−01 A8 =−1.2351E−02 −1.1986E−02 −1.1263E−01 −4.2344E−01 −3.0123E−01 A10 =−6.3732E−03 2.5025E−03 −1.1900E−01 4.0113E−01 2.1806E−01 A12 =2.7261E−04 −5.4314E−04 3.0858E−01 −1.7134E−01 −8.0785E−02 A14 = — —−2.0355E−01 2.4330E−02 1.1392E−02 A16 = — — 4.5152E−02 — — Surface # 1213 14 15 k = −1.6684E+01 −8.6382E+01 −8.1998E−01 −1.5219E+00 A4 =−3.9615E−02 −2.1431E−03 −3.7628E−01 −2.8325E−01 A6 = 3.8600E−028.5664E−03 1.9019E−01 1.6639E−01 A8 = −8.2939E−02 −2.6536E−02−5.8449E−02 −7.5248E−02 A10 = 5.0185E−02 1.1174E−02 1.3528E−022.2744E−02 A12 = −1.8395E−02 −1.7084E−03 −2.2724E−03 −4.1790E−03 A14 =3.1339E−03 8.4600E−05 2.3107E−04 4.1489E−04 A16 = — — −1.0270E−05−1.6956E−05

In the 2nd embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of these parameters shown in thefollowing table are the same as those stated in the 1st embodiment withcorresponding values for the 2nd embodiment, so an explanation in thisregard will not be provided again.

Moreover, these parameters can be calculated from Table 3 and Table 4 asthe following values and satisfy the following conditions:

2nd Embodiment f [mm] 3.98 (R13 − R14)/(R13 + R14) 0.32 Fno 1.80 |f1/f2|0.50 HFOV [deg.] 35.4 f/f3 0.45 Nmax 1.650 |f1/f7| 0.52 V2 21.4 |f/fj|max 1.20 CT1/CT2 3.33 f/EPD 1.80 T23/CT2 1.44 Yc62/Yc61 1.08 T23/T342.41 Yc62/Yc72 0.95 (T12/T23) + (T34/T45) + 1.42 Yc72/f 0.28 (T56/T67)R1/R2 0.09 ΣAT/ImgH 0.37 f/R6 −0.31 SD/TD 0.90 f/R12 0.88 TL/f 1.22R14/f 0.37 TL/ImgH 1.67 (R11 − R12)/(R11 + R12) −0.35

3rd Embodiment

FIG. 5 is a schematic view of an image capturing unit according to the3rd embodiment of the present disclosure. FIG. 6 shows, in order fromleft to right, spherical aberration curves, astigmatic field curves anda distortion curve of the image capturing unit according to the 3rdembodiment. In FIG. 5, the image capturing unit includes thephotographing optical lens assembly (its reference numeral is omitted)of the present disclosure and an image sensor 395. The photographingoptical lens assembly includes, in order from an object side to an imageside, an aperture stop 300, a first lens element 310, a second lenselement 320, a third lens element 330, a fourth lens element 340, afifth lens element 350, a sixth lens element 360, a seventh lens element370, an IR-cut filter 380 and an image surface 390, wherein thephotographing optical lens assembly has a total of seven non-cementedlens elements (310-370) with refractive power.

The first lens element 310 with positive refractive power has anobject-side surface 311 being convex in a paraxial region thereof and animage-side surface 312 being concave in a paraxial region thereof. Thefirst lens element 310 is made of plastic material and has theobject-side surface 311 and the image-side surface 312 being bothaspheric.

The second lens element 320 with negative refractive power has anobject-side surface 321 being convex in a paraxial region thereof and animage-side surface 322 being concave in a paraxial region thereof. Thesecond lens element 320 is made of plastic material and has theobject-side surface 321 and the image-side surface 322 being bothaspheric.

The third lens element 330 with positive refractive power has anobject-side surface 331 being convex in a paraxial region thereof and animage-side surface 332 being concave in a paraxial region thereof. Thethird lens element 330 is made of plastic material and has theobject-side surface 331 and the image-side surface 332 being bothaspheric.

The fourth lens element 340 with negative refractive power has anobject-side surface 341 being concave in a paraxial region thereof andan image-side surface 342 being concave in a paraxial region thereof.The fourth lens element 340 is made of plastic material and has theobject-side surface 341 and the image-side surface 342 being bothaspheric.

The fifth lens element 350 with positive refractive power has anobject-side surface 351 being convex in a paraxial region thereof and animage-side surface 352 being convex in a paraxial region thereof. Thefifth lens element 350 is made of plastic material and has theobject-side surface 351 and the image-side surface 352 being bothaspheric.

The sixth lens element 360 with positive refractive power has anobject-side surface 361 being convex in a paraxial region thereof and animage-side surface 362 being concave in a paraxial region thereof. Thesixth lens element 360 is made of plastic material and has theobject-side surface 361 and the image-side surface 362 being bothaspheric. The image-side surface 362 of the sixth lens element 360 hasat least one inflection point.

The seventh lens element 370 with negative refractive power has anobject-side surface 371 being convex in a paraxial region thereof and animage-side surface 372 being concave in a paraxial region thereof. Thesixth lens element 370 is made of plastic material and has theobject-side surface 371 and the image-side surface 372 being bothaspheric. The image-side surface 372 of the seventh lens element 370 hasat least one inflection point.

The IR-cut filter 380 is made of glass and located between the seventhlens element 370 and the image surface 390, and will not affect thefocal length of the photographing optical lens assembly. The imagesensor 395 is disposed on or near the image surface 390 of thephotographing optical lens assembly.

The detailed optical data of the 3rd embodiment are shown in Table 5 andthe aspheric surface data are shown in Table 6 below.

TABLE 5 3rd Embodiment f = 3.65 mm, Fno = 1.90, HFOV = 37.9 deg.Curvature Focal Surface# Radius Thickness Material Index Abbe # Length 0Object Plano Infinity 1 Ape. Stop Plano −0.315 2 Lens 1 1.629 (ASP)0.500 Plastic 1.544 55.9 3.36 3 13.484 (ASP) 0.077 4 Lens 2 3.326 (ASP)0.271 Plastic 1.650 21.4 −7.51 5 1.914 (ASP) 0.270 6 Lens 3 6.139 (ASP)0.393 Plastic 1.544 55.9 14.00 7 30.926 (ASP) 0.157 8 Lens 4 −9.731(ASP) 0.230 Plastic 1.650 21.4 −9.17 9 15.504 (ASP) 0.060 10 Lens 58.375 (ASP) 0.420 Plastic 1.544 55.9 10.15 11 −15.944 (ASP) 0.149 12Lens 6 2.897 (ASP) 0.499 Plastic 1.544 55.9 15.39 13 4.161 (ASP) 0.21114 Lens 7 2.529 (ASP) 0.552 Plastic 1.544 55.9 −6.49 15 1.360 (ASP)0.400 16 IR-cut filter Plano 0.300 Glass 1.517 64.2 — 17 Plano 0.139 18Image Plano — Note: Reference wavelength is 587.6 nm (d-line).

TABLE 6 Aspheric Coefficients Surface # 2 3 4 5 6 k = 2.0179E−014.0042E+01 −3.6055E+01 −1.9011E+01 −5.0000E+01 A4 = −1.6154E−03−1.2601E−01 −1.3594E−01 1.2763E−01 −7.1145E−02 A6 = −1.2454E−023.5287E−01 4.1483E−01 −2.0795E−01 −5.6667E−03 A8 = 4.1966E−02−4.7518E−01 −5.2444E−01 4.9453E−01 2.2018E−02 A10 = −6.3923E−023.9330E−01 3.8071E−01 −5.7480E−01 −2.9138E−02 A12 = 5.5731E−02−1.7583E−01 −1.5383E−01 3.2571E−01 5.7097E−02 A14 = −1.4862E−023.0628E−02 1.2377E−02 −7.7776E−02 −4.6188E−02 Surface # 7 8 9 10 11 k =−2.8582E+01 7.8411E+01 −3.3333E+01 −9.0000E+01 7.3877E+01 A4 =−4.0830E−02 −1.3039E−02 −1.3719E−01 −1.3756E−01 −1.8656E−01 A6 =−6.9467E−02 −1.2086E−02 1.3287E−01 2.4907E−01 2.6422E−01 A8 = 9.0966E−03−4.7147E−02 −1.0724E−01 −4.2735E−01 −2.9683E−01 A10 = −2.4870E−026.0740E−03 −1.2058E−01 3.9917E−01 2.1950E−01 A12 = 2.4340E−03 7.6223E−033.0729E−01 −1.7010E−01 −8.0920E−02 A14 = −5.8876E−12 1.1523E−11−2.0217E−01 2.4518E−02 1.0993E−02 A16 = — — 4.5152E−02 — — Surface # 1213 14 15 k = −2.7405E+01 −6.8048E+01 −8.7458E−01 −1.4766E+00 A4 =−6.7523E−02 −2.5490E−02 −3.8149E−01 −2.7976E−01 A6 = 3.6482E−021.2104E−02 1.9095E−01 1.6707E−01 A8 = −8.0399E−02 −2.5924E−02−5.8415E−02 −7.5493E−02 A10 = 5.0870E−02 1.1109E−02 1.3524E−022.2766E−02 A12 = −1.8186E−02 −1.7220E−03 −2.2742E−03 −4.1806E−03 A14 =3.0474E−03 8.6956E−05 2.3093E−04 4.1462E−04 A16 = — — −1.0240E−05−1.6890E−05

In the 3rd embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of these parameters shown in thefollowing table are the same as those stated in the 1st embodiment withcorresponding values for the 3rd embodiment, so an explanation in thisregard will not be provided again.

Moreover, these parameters can be calculated from Table 5 and Table 6 asthe following values and satisfy the following conditions:

3rd Embodiment f [mm] 3.65 (R13 − R14)/(R13 + R14) 0.30 Fno 1.90 |f1/f2|0.45 HFOV [deg.] 37.9 f/f3 0.26 Nmax 1.650 |f1/f7| 0.52 V2 21.4 |f/fj|max 1.09 CT1/CT2 1.85 f/EPD 1.90 T23/CT2 1.00 Yc62/Yc61 1.13 T23/T341.72 Yc62/Yc72 0.76 (T12/T23) + (T34/T45) + 3.61 Yc72/f 0.33 (T56/T67)R1/R2 0.12 ΣAT/ImgH 0.32 f/R6 0.12 SD/TD 0.92 f/R12 0.88 TL/f 1.27 R14/f0.37 TL/ImgH 1.60 (R11 − R12)/(R11 + R12) −0.18

4th Embodiment

FIG. 7 is a schematic view of an image capturing unit according to the4th embodiment of the present disclosure. FIG. 8 shows, in order fromleft to right, spherical aberration curves, astigmatic field curves anda distortion curve of the image capturing unit according to the 4thembodiment. In FIG. 7, the image capturing unit includes thephotographing optical lens assembly (its reference numeral is omitted)of the present disclosure and an image sensor 495. The photographingoptical lens assembly includes, in order from an object side to an imageside, an aperture stop 400, a first lens element 410, a second lenselement 420, a third lens element 430, a fourth lens element 440, afifth lens element 450, a sixth lens element 460, a seventh lens element470, an IR-cut filter 480 and an image surface 490, wherein thephotographing optical lens assembly has a total of seven non-cementedlens elements (410-470) with refractive power.

The first lens element 410 with positive refractive power has anobject-side surface 411 being convex in a paraxial region thereof and animage-side surface 412 being concave in a paraxial region thereof. Thefirst lens element 410 is made of plastic material and has theobject-side surface 411 and the image-side surface 412 being bothaspheric.

The second lens element 420 with negative refractive power has anobject-side surface 421 being convex in a paraxial region thereof and animage-side surface 422 being concave in a paraxial region thereof. Thesecond lens element 420 is made of plastic material and has theobject-side surface 421 and the image-side surface 422 being bothaspheric.

The third lens element 430 with positive refractive power has anobject-side surface 431 being convex in a paraxial region thereof and animage-side surface 432 being concave in a paraxial region thereof. Thethird lens element 430 is made of plastic material and has theobject-side surface 431 and the image-side surface 432 being bothaspheric.

The fourth lens element 440 with negative refractive power has anobject-side surface 441 being concave in a paraxial region thereof andan image-side surface 442 being convex in a paraxial region thereof. Thefourth lens element 440 is made of plastic material and has theobject-side surface 441 and the image-side surface 442 being bothaspheric.

The fifth lens element 450 with negative refractive power has anobject-side surface 451 being convex in a paraxial region thereof and animage-side surface 452 being concave in a paraxial region thereof. Thefifth lens element 450 is made of plastic material and has theobject-side surface 451 and the image-side surface 452 being bothaspheric.

The sixth lens element 460 with positive refractive power has anobject-side surface 461 being convex in a paraxial region thereof and animage-side surface 462 being concave in a paraxial region thereof. Thesixth lens element 460 is made of plastic material and has theobject-side surface 461 and the image-side surface 462 being bothaspheric. The image-side surface 462 of the sixth lens element 460 hasat least one inflection point.

The seventh lens element 470 with negative refractive power has anobject-side surface 471 being convex in a paraxial region thereof and animage-side surface 472 being concave in a paraxial region thereof. Thesixth lens element 470 is made of plastic material and has theobject-side surface 471 and the image-side surface 472 being bothaspheric. The image-side surface 472 of the seventh lens element 470 hasat least one inflection point.

The IR-cut filter 480 is made of glass and located between the seventhlens element 470 and the image surface 490, and will not affect thefocal length of the photographing optical lens assembly. The imagesensor 495 is disposed on or near the image surface 490 of thephotographing optical lens assembly.

The detailed optical data of the 4th embodiment are shown in Table 7 andthe aspheric surface data are shown in Table 8 below.

TABLE 7 4th Embodiment f = 3.66 mm, Fno = 2.00, HFOV = 37.6 deg.Curvature Focal Surface# Radius Thickness Material Index Abbe # Length 0Object Plano Infinity 1 Ape. Stop Plano −0.321 2 Lens 1 1.454 (ASP)0.500 Plastic 1.544 55.9 3.15 3 8.355 (ASP) 0.079 4 Lens 2 2.920 (ASP)0.166 Plastic 1.650 21.4 −7.83 5 1.814 (ASP) 0.254 6 Lens 3 8.485 (ASP)0.320 Plastic 1.544 55.9 19.57 7 41.177 (ASP) 0.152 8 Lens 4 −8.900(ASP) 0.230 Plastic 1.650 21.4 −17.96 9 −37.880 (ASP) 0.069 10 Lens 53.720 (ASP) 0.280 Plastic 1.650 21.4 −24.38 11 2.923 (ASP) 0.246 12 Lens6 2.284 (ASP) 0.490 Plastic 1.544 55.9 8.12 13 4.372 (ASP) 0.291 14 Lens7 2.176 (ASP) 0.530 Plastic 1.535 55.7 −8.08 15 1.324 (ASP) 0.400 16IR-cut filter Plano 0.300 Glass 1.517 64.2 — 17 Plano 0.138 18 ImagePlano — Note: Reference wavelength is 587.6 nm (d-line).

TABLE 8 Aspheric Coefficients Surface # 2 3 4 5 6 k = 1.9505E−012.0741E+01 −4.6124E+01 −2.1269E+01 5.2858E+00 A4 = −2.2156E−03−1.2598E−01 −1.3019E−01 1.3082E−01 −6.8701E−02 A6 = −1.2443E−023.4058E−01 4.2228E−01 −1.8193E−01 −1.5778E−02 A8 = 3.6453E−02−4.8528E−01 −5.2414E−01 5.0362E−01 1.4729E−02 A10 = −6.6713E−023.9206E−01 3.7918E−01 −5.8488E−01 −2.1419E−02 A12 = 5.3092E−02−1.7039E−01 −1.4705E−01 3.2088E−01 6.4515E−02 A14 = −1.6996E−023.4459E−02 3.3003E−02 −3.0998E−02 −5.9778E−02 Surface # 7 8 9 10 11 k =8.5464E+01 7.8986E+01 9.0000E+01 −7.4189E+01 −3.4802E+01 A4 =−4.4126E−02 −3.3229E−02 −1.2754E−01 −1.5997E−01 −1.8448E−01 A6 =−4.8248E−02 1.1723E−02 1.2914E−01 2.5331E−01 2.4939E−01 A8 = 9.5743E−03−6.1279E−02 −1.0206E−01 −4.3556E−01 −3.0052E−01 A10 = −5.0046E−025.0433E−03 −1.1796E−01 3.9694E−01 2.1924E−01 A12 = 1.0606E−02 1.0062E−023.0849E−01 −1.6929E−01 −8.0748E−02 A14 = 1.0691E−11 6.6539E−12−2.0052E−01 2.4321E−02 1.1196E−02 A16 = — — 4.5152E−02 −2.9257E−106.2381E−05 Surface # 12 13 14 15 k = −1.3809E+01 −9.0000E+01 −1.7163E+00−2.0663E+00 A4 = −6.0019E−02 −2.2468E−02 −3.8527E−01 −2.6819E−01 A6 =3.6832E−02 9.7575E−03 1.9159E−01 1.6462E−01 A8 = −8.2611E−02 −2.5500E−02−5.8391E−02 −7.5541E−02 A10 = 5.0950E−02 1.1145E−02 1.3522E−022.2794E−02 A12 = −1.8032E−02 −1.7265E−03 −2.2749E−03 −4.1793E−03 A14 =3.0605E−03 8.3296E−05 2.3095E−04 4.1443E−04 A16 = — — −1.0190E−05−1.6902E−05

In the 4th embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of these parameters shown in thefollowing table are the same as those stated in the 1st embodiment withcorresponding values for the 4th embodiment, so an explanation in thisregard will not be provided again.

Moreover, these parameters can be calculated from Table 7 and Table 8 asthe following values and satisfy the following conditions:

4th Embodiment f [mm] 3.66 (R13 − R14)/(R13 + R14) 0.24 Fno 2.00 |f1/f2|0.40 HFOV [deg.] 37.6 f/f3 0.19 Nmax 1.650 |f1/f7| 0.39 V2 21.4 |f/fj|max 1.16 CT1/CT2 3.01 f/EPD 2.00 T23/CT2 1.53 Yc62/Yc61 1.00 T23/T341.67 Yc62/Yc72 0.79 (T12/T23) + (T34/T45) + 3.36 Yc72/f 0.31 (T56/T67)R1/R2 0.17 ΣAT/ImgH 0.38 f/R6 0.09 SD/TD 0.91 f/R12 0.84 TL/f 1.22 R14/f0.36 TL/ImgH 1.53 (R11 − R12)/(R11 + R12) −0.31

5th Embodiment

FIG. 9 is a schematic view of an image capturing unit according to the5th embodiment of the present disclosure. FIG. 10 shows, in order fromleft to right, spherical aberration curves, astigmatic field curves anda distortion curve of the image capturing unit according to the 5thembodiment. In FIG. 9, the image capturing unit includes thephotographing optical lens assembly (its reference numeral is omitted)of the present disclosure and an image sensor 595. The photographingoptical lens assembly includes, in order from an object side to an imageside, an aperture stop 500, a first lens element 510, a second lenselement 520, a third lens element 530, a fourth lens element 540, afifth lens element 550, a sixth lens element 560, a seventh lens element570, an IR-cut filter 580 and an image surface 590, wherein thephotographing optical lens assembly has a total of seven non-cementedlens elements (510-570) with refractive power.

The first lens element 510 with positive refractive power has anobject-side surface 511 being convex in a paraxial region thereof and animage-side surface 512 being concave in a paraxial region thereof. Thefirst lens element 510 is made of plastic material and has theobject-side surface 511 and the image-side surface 512 being bothaspheric.

The second lens element 520 with negative refractive power has anobject-side surface 521 being concave in a paraxial region thereof andan image-side surface 522 being concave in a paraxial region thereof.The second lens element 520 is made of plastic material and has theobject-side surface 521 and the image-side surface 522 being bothaspheric.

The third lens element 530 with positive refractive power has anobject-side surface 531 being convex in a paraxial region thereof and animage-side surface 532 being concave in a paraxial region thereof. Thethird lens element 530 is made of plastic material and has theobject-side surface 531 and the image-side surface 532 being bothaspheric.

The fourth lens element 540 with positive refractive power has anobject-side surface 541 being convex in a paraxial region thereof and animage-side surface 542 being concave in a paraxial region thereof. Thefourth lens element 540 is made of plastic material and has theobject-side surface 541 and the image-side surface 542 being bothaspheric.

The fifth lens element 550 with negative refractive power has anobject-side surface 551 being concave in a paraxial region thereof andan image-side surface 552 being convex in a paraxial region thereof. Thefifth lens element 550 is made of plastic material and has theobject-side surface 551 and the image-side surface 552 being bothaspheric.

The sixth lens element 560 with positive refractive power has anobject-side surface 561 being convex in a paraxial region thereof and animage-side surface 562 being concave in a paraxial region thereof. Thesixth lens element 560 is made of plastic material and has theobject-side surface 561 and the image-side surface 562 being bothaspheric. The image-side surface 562 o the sixth lens element 560 has atleast one inflection point.

The seventh lens element 570 with negative refractive power has anobject-side surface 571 being convex in a paraxial region thereof and animage-side surface 572 being concave in a paraxial region thereof. Thesixth lens element 570 is made of plastic material and has theobject-side surface 571 and the image-side surface 572 being bothaspheric. The image-side surface 572 of the seventh lens element 570 hasat least one inflection point.

The IR-cut filter 580 is made of glass and located between the seventhlens element 570 and the image surface 590, and will not affect thefocal length of the photographing optical lens assembly. The imagesensor 595 is disposed on or near the image surface 590 of thephotographing optical lens assembly. The detailed optical data of the5th embodiment are shown in Table 9 and the aspheric surface data areshown in Table 10 below.

TABLE 9 5th Embodiment f = 5.59 mm, Fno = 1.75, HFOV = 34.5 deg.Curvature Focal Surface# Radius Thickness Material Index Abbe # Length 0Object Plano Infinity 1 Ape. Stop Plano −0.614 2 Lens 1 2.383 (ASP)0.857 Plastic 1.544 55.9 4.89 3 19.860 (ASP) 0.303 4 Lens 2 −100.000(ASP) 0.480 Plastic 1.640 23.3 −5.29 5 3.513 (ASP) 0.209 6 Lens 3 3.401(ASP) 0.594 Plastic 1.544 55.9 10.83 7 7.549 (ASP) 0.209 8 Lens 4 5.743(ASP) 0.315 Plastic 1.544 55.9 11.89 9 50.057 (ASP) 0.304 10 Lens 5−3.201 (ASP) 0.280 Plastic 1.640 23.3 −60.85 11 −3.607 (ASP) 0.407 12Lens 6 2.967 (ASP) 0.506 Plastic 1.544 55.9 89.92 13 2.969 (ASP) 0.49214 Lens 7 3.615 (ASP) 0.642 Plastic 1.544 55.9 −9.78 15 2.018 (ASP)0.450 16 IR-cut filter Plano 0.405 Glass 1.517 64.2 — 17 Plano 0.260 18Image Plano — Note: Reference wavelength is 587.6 nm (d-line).

TABLE 10 Aspheric Coefficients Surface # 2 3 4 5 6 k = 1.0811E−019.0000E+01 −9.0000E+01 −6.1500E+01 −2.5137E+01 A4 = −2.6060E−03−4.6221E−02 −7.1270E−02 3.4637E−02 1.9711E−03 A6 = −2.0373E−037.0826E−02 8.9664E−02 −4.9408E−02 −5.2045E−03 A8 = 5.7872E−03−5.8840E−02 −6.4034E−02 6.0255E−02 3.2705E−03 A10 = −4.6207E−032.6393E−02 2.6293E−02 −3.8080E−02 −3.3926E−03 A12 = 1.6981E−03−5.8208E−03 −5.5105E−03 1.2117E−02 8.8285E−04 A14 = −2.3915E−044.5226E−04 4.0694E−04 −1.4506E−03 −1.6356E−06 Surface # 7 8 9 10 11 k =−9.0000E+01 −7.7232E+01 −9.0000E+01 8.5901E−01 −9.6217E+00 A4 =−6.2548E−03 −1.2959E−02 −4.9457E−02 −2.7576E−02 −7.2823E−02 A6 =−3.7399E−03 −9.0488E−03 2.5771E−02 5.6050E−02 5.7698E−02 A8 =−2.0208E−03 −2.8225E−03 −1.3183E−02 −5.1619E−02 −3.7112E−02 A10 =−5.2849E−04 1.4955E−04 −7.8580E−03 2.6848E−02 1.4648E−02 A12 =1.3417E−04 2.2501E−04 1.1335E−02 −6.3375E−03 −2.9591E−03 A14 = — —−4.1569E−03 4.7641E−04 2.4060E−04 A16 = — — 4.9563E−04 — — Surface # 1213 14 15 k = −2.2824E+01 −2.6785E+01 −7.6801E−01 −1.5490E+00 A4 =−9.6573E−03 −3.9287E−03 −1.5339E−01 −1.1290E−01 A6 = 5.5718E−032.2761E−03 4.2266E−02 3.6935E−02 A8 = −9.7778E−03 −3.2864E−03−7.1460E−03 −9.2042E−03 A10 = 3.4291E−03 7.5579E−04 9.0915E−041.5279E−03 A12 = −6.7980E−04 −6.3018E−05 −8.3652E−05 −1.5392E−04 A14 =5.8337E−05 1.6418E−06 4.6720E−06 8.3904E−06 A16 = — — −1.1473E−07−1.8806E−07

In the 5th embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of these parameters shown in thefollowing table are the same as those stated in the 1st embodiment withcorresponding values for the 5th embodiment, so an explanation in thisregard will not be provided again.

Moreover, these parameters can be calculated from Table 9 and Table 10as the following values and satisfy the following conditions:

5th Embodiment f [mm] 5.59 (R13 − R14)/(R13 + R14) 0.28 Fno 1.75 |f1/f2|0.92 HFOV [deg.] 34.5 f/f3 0.52 Nmax 1.640 |f1/f7| 0.50 V2 23.3 |f/fj|max 1.14 CT1/CT2 1.79 f/EPD 1.75 T23/CT2 0.44 Yc62/Yc61 1.20 T23/T341.00 Yc62/Yc72 1.01 (T12/T23) + (T34/T45) + 2.96 Yc72/f 0.27 (T56/T67)R1/R2 0.12 ΣAT/ImgH 0.49 f/R6 0.74 SD/TD 0.89 f/R12 1.88 TL/f 1.20 R14/f0.36 TL/ImgH 1.72 (R11 − R12)/(R11 + R12) −0.0003

6th Embodiment

FIG. 11 is a schematic view of an image capturing unit according to the6th embodiment of the present disclosure. FIG. 12 shows, in order fromleft to right, spherical aberration curves, astigmatic field curves anda distortion curve of the image capturing unit according to the 6thembodiment. In FIG. 11, the image capturing unit includes thephotographing optical lens assembly (its reference numeral is omitted)of the present disclosure and an image sensor 695. The photographingoptical lens assembly includes, in order from an object side to an imageside, a first lens element 610, an aperture stop 600, a second lenselement 620, a third lens element 630, a fourth lens element 640, afifth lens element 650, a sixth lens element 660, a seventh lens element670, an IR-cut filter 680 and an image surface 690, wherein thephotographing optical lens assembly has a total of seven non-cementedlens elements (610-670) with refractive power.

The first lens element 610 with positive refractive power has anobject-side surface 611 being convex in a paraxial region thereof and animage-side surface 612 being concave in a paraxial region thereof. Thefirst lens element 610 is made of plastic material and has theobject-side surface 611 and the image-side surface 612 being bothaspheric.

The second lens element 620 with negative refractive power has anobject-side surface 621 being convex in a paraxial region thereof and animage-side surface 622 being concave in a paraxial region thereof. Thesecond lens element 620 is made of plastic material and has theobject-side surface 621 and the image-side surface 622 being bothaspheric.

The third lens element 630 with negative refractive power has anobject-side surface 631 being convex in a paraxial region thereof and animage-side surface 632 being concave in a paraxial region thereof. Thethird lens element 630 is made of plastic material and has theobject-side surface 631 and the image-side surface 632 being bothaspheric.

The fourth lens element 640 with positive refractive power has anobject-side surface 641 being convex in a paraxial region thereof and animage-side surface 642 being convex in a paraxial region thereof. Thefourth lens element 640 is made of plastic material and has theobject-side surface 641 and the image-side surface 642 being bothaspheric.

The fifth lens element 650 with negative refractive power has anobject-side surface 651 being concave in a paraxial region thereof andan image-side surface 652 being convex in a paraxial region thereof. Thefifth lens element 650 is made of plastic material and has theobject-side surface 651 and the image-side surface 652 being bothaspheric.

The sixth lens element 660 with positive refractive power has anobject-side surface 661 being convex in a paraxial region thereof and animage-side surface 662 being concave in a paraxial region thereof. Thesixth lens element 660 is made of plastic material and has theobject-side surface 661 and the image-side surface 662 being bothaspheric. The image-side surface 662 of the sixth lens element 660 hasat least one inflection point.

The seventh lens element 670 with negative refractive power has anobject-side surface 671 being concave in a paraxial region thereof andan image-side surface 672 being concave in a paraxial region thereof.The sixth lens element 670 is made of plastic material and has theobject-side surface 671 and the image-side surface 672 being bothaspheric. The image-side surface 672 of the seventh lens element 670 hasat least one inflection point.

The IR-cut filter 680 is made of glass and located between the seventhlens element 670 and the image surface 690, and will not affect thefocal length of the photographing optical lens assembly. The imagesensor 695 is disposed on or near the image surface 690 of thephotographing optical lens assembly.

The detailed optical data of the 6th embodiment are shown in Table 11and the aspheric surface data are shown in Table 12 below.

TABLE 11 6th Embodiment f = 5.04 mm, Fno = 1.85, HFOV = 37.4 deg.Curvature Focal Surface# Radius Thickness Material Index Abbe # Length 0Object Plano Infinity 1 Lens 1 2.496 (ASP) 0.704 Plastic 1.544 55.9 5.352 15.830 (ASP) 0.040 3 Ape. Stop Plano 0.265 4 Lens 2 12.102 (ASP) 0.380Plastic 1.640 23.3 −7.09 5 3.258 (ASP) 0.217 6 Lens 3 3.681 (ASP) 0.257Plastic 1.640 23.3 −144.69 7 3.444 (ASP) 0.100 8 Lens 4 4.115 (ASP)0.803 Plastic 1.544 55.9 5.64 9 −11.231 (ASP) 0.159 10 Lens 5 −2.897(ASP) 0.435 Plastic 1.640 23.3 −13.16 11 −4.675 (ASP) 0.291 12 Lens 62.869 (ASP) 0.678 Plastic 1.544 55.9 5.93 13 23.810 (ASP) 0.828 14 Lens7 −81.301 (ASP) 0.330 Plastic 1.544 55.9 −4.33 15 2.432 (ASP) 0.450 16IR-cut filter Plano 0.405 Glass 1.517 64.2 — 17 Plano 0.259 18 ImagePlano — Note: Reference wavelength is 587.6 nm (d-line).

TABLE 12 Aspheric Coefficients Surface # 1 2 4 5 6 k = 6.8595E−024.0000E+01 −5.0000E+01 −4.4437E+01 −4.1338E+01 A4 = −2.8321E−03−4.0467E−02 −7.7538E−02 3.3929E−02 2.3159E−03 A6 = −1.4731E−036.1460E−02 8.9954E−02 −4.8589E−02 −9.2979E−03 A8 = 5.1463E−03−5.6709E−02 −6.3382E−02 5.8078E−02 1.3899E−03 A10 = −4.5969E−032.7905E−02 2.6509E−02 −3.8458E−02 −3.6916E−03 A12 = 1.8550E−03−6.1855E−03 −5.6856E−03 1.2547E−02 8.8820E−04 A14 = −2.9802E−043.2919E−04 4.3958E−04 −1.5466E−03 −5.8326E−05 Surface # 7 8 9 10 11 k =−5.1797E+01 −9.0000E+01 3.6727E+01 8.6207E−01 −4.5958E+00 A4 =−3.2142E−03 −1.0487E−02 −5.6950E−02 −2.0581E−02 −6.5935E−02 A6 =−4.5231E−03 −7.4209E−03 2.7187E−02 5.3934E−02 5.9828E−02 A8 =−2.3837E−03 −1.1805E−03 −1.3948E−02 −5.1620E−02 −3.6983E−02 A10 =−5.8788E−04 5.1669E−04 −8.1876E−03 2.6968E−02 1.4619E−02 A12 =3.6482E−04 1.6909E−04 1.1294E−02 −6.3214E−03 −2.9677E−03 A14 = — —−4.1351E−03 4.8172E−04 2.3684E−04 A16 = — — 5.0449E−04 — — Surface # 1213 14 15 k = −1.7235E+01 5.1086E+00 −9.0000E+01 −3.7825E+00 A4 =−4.6214E−03 1.7428E−03 −1.4438E−01 −1.0384E−01 A6 = 6.7552E−031.8709E−03 4.2329E−02 3.6797E−02 A8 = −9.7961E−03 −3.3402E−03−7.1465E−03 −9.2589E−03 A10 = 3.4642E−03 7.5757E−04 9.1033E−041.5265E−03 A12 = −6.8309E−04 −6.2829E−05 −8.3643E−05 −1.5384E−04 A14 =5.6245E−05 1.6766E−06 4.6641E−06 8.3954E−06 A16 = — — −1.1633E−07−1.8664E−07

In the 6th embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of these parameters shown in thefollowing table are the same as those stated in the 1st embodiment withcorresponding values for the 6th embodiment, so an explanation in thisregard will not be provided again.

Moreover, these parameters can be calculated from Table 11 and Table 12as the following values and satisfy the following conditions:

6th Embodiment f [mm] 5.04 (R13 − R14)/(R13 + R14) 1.06 Fno 1.85 |f1/f2|0.75 HFOV [deg.] 37.4 f/f3 −0.03 Nmax 1.640 |f1/f7| 1.23 V2 23.3 |f/fj|max 1.16 CT1/CT2 1.85 f/EPD 1.85 T23/CT2 0.57 Yc62/Yc61 0.96 T23/T342.17 Yc62/Yc72 1.09 (T12/T23) + (T34/ 2.39 Yc72/f 0.25 T45) + (T56/T67)R1/R2 0.16 ΣAT/ImgH 0.49 f/R6 1.46 SD/TD 0.86 f/R12 0.21 TL/f 1.31 R14/f0.48 TL/ImgH 1.69 (R11 − R12)/(R11 + R12) −0.78

7th Embodiment

FIG. 13 is a schematic view of an image capturing unit according to the7th embodiment of the present disclosure. FIG. 14 shows, in order fromleft to right, spherical aberration curves, astigmatic field curves anda distortion curve of the image capturing unit according to the 7thembodiment. In FIG. 13, the image capturing unit includes thephotographing optical lens assembly (its reference numeral is omitted)of the present disclosure and an image sensor 795. The photographingoptical lens assembly includes, in order from an object side to an imageside, an aperture stop 700, a first lens element 710, a second lenselement 720, a third lens element 730, a fourth lens element 740, afifth lens element 750, a sixth lens element 760, a seventh lens element770, an IR-cut filter 780 and an image surface 790, wherein thephotographing optical lens assembly has a total of seven non-cementedlens elements (710-770) with refractive power.

The first lens element 710 with positive refractive power has anobject-side surface 711 being convex in a paraxial region thereof and animage-side surface 712 being concave in a paraxial region thereof. Thefirst lens element 710 is made of plastic material and has theobject-side surface 711 and the image-side surface 712 being bothaspheric.

The second lens element 720 with negative refractive power has anobject-side surface 721 being convex in a paraxial region thereof and animage-side surface 722 being concave in a paraxial region thereof. Thesecond lens element 720 is made of plastic material and has theobject-side surface 721 and the image-side surface 722 being bothaspheric.

The third lens element 730 with positive refractive power has anobject-side surface 731 being convex in a paraxial region thereof and animage-side surface 732 being concave in a paraxial region thereof. Thethird lens element 730 is made of plastic material and has theobject-side surface 731 and the image-side surface 732 being bothaspheric.

The fourth lens element 740 with positive refractive power has anobject-side surface 741 being convex in a paraxial region thereof and animage-side surface 742 being convex in a paraxial region thereof. Thefourth lens element 740 is made of plastic material and has theobject-side surface 741 and the image-side surface 742 being bothaspheric.

The fifth lens element 750 with negative refractive power has anobject-side surface 751 being concave in a paraxial region thereof andan image-side surface 752 being convex in a paraxial region thereof. Thefifth lens element 750 is made of plastic material and has theobject-side surface 751 and the image-side surface 752 being bothaspheric.

The sixth lens element 760 with positive refractive power has anobject-side surface 761 being convex in a paraxial region thereof and animage-side surface 762 being concave in a paraxial region thereof. Thesixth lens element 760 is made of plastic material and has theobject-side surface 761 and the image-side surface 762 being bothaspheric. The image-side surface 762 of the sixth lens element 760 hasat least one inflection point.

The seventh lens element 770 with positive refractive power has anobject-side surface 771 being convex in a paraxial region thereof and animage-side surface 772 being concave in a paraxial region thereof. Thesixth lens element 770 is made of plastic material and has theobject-side surface 771 and the image-side surface 772 being bothaspheric. The image-side surface 772 of the seventh lens element 770 hasat least one inflection point.

The IR-cut filter 780 is made of glass and located between the seventhlens element 770 and the image surface 790, and will not affect thefocal length of the photographing optical lens assembly. The imagesensor 795 is disposed on or near the image surface 790 of thephotographing optical lens assembly.

The detailed optical data of the 7th embodiment are shown in Table 13and the aspheric surface data are shown in Table 14 below.

TABLE 13 7th Embodiment f = 3.86 mm, Fno = 1.65, HFOV = 36.0 deg.Curvature Focal Surface# Radius Thickness Material Index Abbe # Length 0Object Plano Infinity 1 Ape. Stop Plano −0.432 2 Lens 1 1.804 (ASP)0.658 Plastic 1.544 55.9 3.82 3 11.903 (ASP) 0.070 4 Lens 2 2.403 (ASP)0.220 Plastic 1.639 23.5 −7.07 5 1.512 (ASP) 0.245 6 Lens 3 3.430 (ASP)0.328 Plastic 1.544 55.9 33.13 7 4.094 (ASP) 0.180 8 Lens 4 6.413 (ASP)0.430 Plastic 1.544 55.9 7.93 9 −12.887 (ASP) 0.270 10 Lens 5 −1.813(ASP) 0.270 Plastic 1.639 23.5 −7.93 11 −2.986 (ASP) 0.035 12 Lens 62.152 (ASP) 0.455 Plastic 1.544 55.9 31.31 13 2.280 (ASP) 0.241 14 Lens7 1.425 (ASP) 0.601 Plastic 1.544 55.9 83.35 15 1.253 (ASP) 0.500 16IR-cut filter Plano 0.300 Glass 1.517 64.2 — 17 Plano 0.142 18 ImagePlano — Note: Reference wavelength is 587.6 nm (d-line).

TABLE 14 Aspheric Coefficients Surface # 2 3 4 5 6 k= 1.7198E−01−6.5821E+01 −2.2211E+01 −1.1642E+01 −6.8144E+00 A4= 3.6228E−03−1.4631E−01 −1.8333E−01  1.1828E−01 −6.1205E−03 A6= −2.0408E−02  3.7140E−01  4.0431E−01 −2.4427E−01 −8.0501E−03 A8= 5.0675E−02−4.9646E−01 −5.1347E−01  4.9181E−01  3.0308E−02 A10= −6.6396E−02  3.8237E−01  3.8365E−01 −5.5861E−01 −5.2573E−02 A12= 4.4585E−02−1.5624E−01 −1.5630E−01  3.2621E−01  2.3947E−02 A14= −1.2125E−02  2.4322E−02  2.5640E−02 −7.3615E−02 −3.4618E−03 Surface # 7 8 9 10 11 k=−1.8913E+01 −9.0000E+01  6.6483E+01 7.1981E−01 −2.2342E+00 A4=−9.0401E−03 −2.9942E−02 −1.2128E−01 −4.4294E−02  −1.7692E−01 A6=−1.1409E−02 −3.3768E−02  1.1903E−01 2.6399E−01  2.6741E−01 A8=−6.0727E−03 −1.3263E−02 −1.1038E−01 −4.1728E−01  −2.9964E−01 A10=−8.0577E−03  2.6773E−03 −1.1959E−01 3.9961E−01  2.1867E−01 A12=−8.7548E−12  8.8115E−12  3.0655E−01 −1.7180E−01  −8.0591E−02 A14= — —−2.0549E−01 2.4453E−02  1.1514E−02 A16= — —  4.5153E−02 — — Surface # 1213 14 15 k= −8.2784E+00 −1.9081E+01 −2.5314E+00 −1.6180E+00 A4=−4.5219E−02 −5.1072E−03 −3.8116E−01 −2.8518E−01 A6=  3.9095E−02 9.3768E−03  1.9100E−01  1.6705E−01 A8= −8.2337E−02 −2.7040E−02−5.8397E−02 −7.5180E−02 A10=  5.0063E−02  1.1260E−02  1.3532E−02 2.2739E−02 A12= −1.8359E−02 −1.7059E−03 −2.2712E−03 −4.1799E−03 A14= 3.0344E−03  8.2168E−05  2.3103E−04  4.1490E−04 A16= — — −1.0338E−05−1.6938E−05

In the 7th embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of these parameters shown in thefollowing table are the same as those stated in the 1st embodiment withcorresponding values for the 7th embodiment, so an explanation in thisregard will not be provided again.

Moreover, these parameters can be calculated from Table 13 and Table 14as the following values and satisfy the following conditions:

7th Embodiment f [mm] 3.86 (R13 − R14)/(R13 + R14) 0.06 Fno 1.65 |f1/f2|0.54 HFOV [deg.] 36.0 f/f3 0.12 Nmax 1.639 |f1/f7| 0.05 V2 23.5 |f/fj|max 1.01 CT1/CT2 2.99 f/EPD 1.65 T23/CT2 1.11 Yc62/Yc61 1.18 T23/T341.36 Yc62/Yc72 1.00 (T12/T23) + (T34/ 1.10 Yc72/f 0.31 T45) + (T56/T67)R1/R2 0.15 ΣAT/ImgH 0.36 f/R6 0.94 SD/TD 0.89 f/R12 1.69 TL/f 1.28 R14/f0.32 TL/ImgH 1.71 (R11 − R12)/(R11 + R12) −0.03

8th Embodiment

FIG. 15 is a schematic view of an image capturing unit according to the8th embodiment of the present disclosure. FIG. 16 shows, in order fromleft to right, spherical aberration curves, astigmatic field curves anda distortion curve of the image capturing unit according to the 8thembodiment. In FIG. 15, the image capturing unit includes thephotographing optical lens assembly (its reference numeral is omitted)of the present disclosure and an image sensor 895. The photographingoptical lens assembly includes, in order from an object side to an imageside, a first lens element 810, an aperture stop 800, a second lenselement 820, a third lens element 830, a fourth lens element 840, afifth lens element 850, a sixth lens element 860, a seventh lens element870, an IR-cut filter 880 and an image surface 890, wherein thephotographing optical lens assembly has a total of seven non-cementedlens elements (810-870) with refractive power.

The first lens element 810 with positive refractive power has anobject-side surface 811 being convex in a paraxial region thereof and animage-side surface 812 being concave in a paraxial region thereof. Thefirst lens element 810 is made of glass material and has the object-sidesurface 811 and the image-side surface 812 being both aspheric.

The second lens element 820 with negative refractive power has anobject-side surface 821 being convex in a paraxial region thereof and animage-side surface 822 being concave in a paraxial region thereof. Thesecond lens element 820 is made of plastic material and has theobject-side surface 821 and the image-side surface 822 being bothaspheric.

The third lens element 830 with positive refractive power has anobject-side surface 831 being convex in a paraxial region thereof and animage-side surface 832 being concave in a paraxial region thereof. Thethird lens element 830 is made of plastic material and has theobject-side surface 831 and the image-side surface 832 being bothaspheric.

The fourth lens element 840 with positive refractive power has anobject-side surface 841 being convex in a paraxial region thereof and animage-side surface 842 being convex in a paraxial region thereof. Thefourth lens element 840 is made of plastic material and has theobject-side surface 841 and the image-side surface 842 being bothaspheric.

The fifth lens element 850 with negative refractive power has anobject-side surface 851 being concave in a paraxial region thereof andan image-side surface 852 being convex in a paraxial region thereof. Thefifth lens element 850 is made of plastic material and has theobject-side surface 851 and the image-side surface 852 being bothaspheric.

The sixth lens element 860 with positive refractive power has anobject-side surface 861 being convex in a paraxial region thereof and animage-side surface 862 being concave in a paraxial region thereof. Thesixth lens element 860 is made of plastic material and has theobject-side surface 861 and the image-side surface 862 being bothaspheric. The image-side surface 862 of the sixth lens element 860 hasat least one inflection point.

The seventh lens element 870 with positive refractive power has anobject-side surface 871 being convex in a paraxial region thereof and animage-side surface 872 being concave in a paraxial region thereof. Thesixth lens element 870 is made of plastic material and has theobject-side surface 871 and the image-side surface 872 being bothaspheric. The image-side surface 872 of the seventh lens element 870 hasat least one inflection point.

The IR-cut filter 880 is made of glass and located between the seventhlens element 870 and the image surface 890, and will not affect thefocal length of the photographing optical lens assembly. The imagesensor 895 is disposed on or near the image surface 890 of thephotographing optical lens assembly.

The detailed optical data of the 8th embodiment are shown in Table 15and the aspheric surface data are shown in Table 16 below.

TABLE 15 8th Embodiment f = 3.93 mm, Fno = 2.30, HFOV = 35.1 deg.Curvature Focal Surface# Radius Thickness Material Index Abbe # Length 0Object Plano Infinity 1 Lens 1 1.857 (ASP) 0.531 Glass 1.571 50.9 F3.432 31.734 (ASP) 0.035 3 Ape. Stop Plano 0.035 4 Lens 2 3.143 (ASP) 0.258Plastic 1.639 23.5 −6.37 5 1.717 (ASP) 0.252 6 Lens 3 4.144 (ASP) 0.216Plastic 1.544 55.9 409.26 7 4.145 (ASP) 0.195 8 Lens 4 5.722 (ASP) 0.489Plastic 1.544 55.9 7.09 9 −11.474 (ASP) 0.252 10 Lens 5 −1.798 (ASP)0.385 Plastic 1.639 23.5 −6.92 11 −3.284 (ASP) 0.039 12 Lens 6 2.126(ASP) 0.463 Plastic 1.544 55.9 26.88 13 2.296 (ASP) 0.233 14 Lens 71.425 (ASP) 0.625 Plastic 1.544 55.9 61.25 15 1.259 (ASP) 0.500 16IR-cut filter Plano 0.300 Glass 1.517 64.2 — 17 Plano 0.200 18 ImagePlano — Note: Reference wavelength is 587.6 nm (d-line).

TABLE 16 Aspheric Coefficients Surface # 1 2 4 5 6 k= 1.7610E−019.0000E+01 −3.0017E+01 −1.3461E+01 −2.9109E+00 A4= 4.0813E−03−1.3110E−01  −1.7470E−01  1.1423E−01 −5.4677E−03 A6= −2.2041E−02 3.5326E−01  4.0095E−01 −2.3576E−01 −2.1816E−02 A8= 4.9702E−02−5.0652E−01  −5.1539E−01  4.9483E−01  2.8708E−02 A10= −6.5378E−02 3.9105E−01  3.8355E−01 −5.7329E−01 −4.5589E−02 A12= 4.5669E−02−1.4361E−01  −1.5354E−01  3.2351E−01  2.9753E−02 A14= −1.7001E−02 1.0912E−02  2.7689E−02 −5.4749E−02 −8.8348E−03 Surface # 7 8 9 10 11 k=−1.1960E+01 −7.1358E+01  7.2694E+01 7.9135E−01 −1.8296E+00 A4=−5.3977E−03 −3.1019E−02 −1.2591E−01 −3.7160E−02  −1.7589E−01 A6=−7.6666E−03 −2.8856E−02  1.1963E−01 2.6580E−01  2.6897E−01 A8=−2.2734E−03 −1.0251E−02 −1.1064E−01 −4.1743E−01  −2.9924E−01 A10=−6.0752E−03  5.5126E−03 −1.2138E−01 3.9905E−01  2.1874E−01 A12=−6.6535E−07  5.7768E−07  3.0594E−01 −1.7180E−01  −8.0610E−02 A14= — —−2.0517E−01 2.4453E−02  1.1557E−02 A16= — —  4.5153E−02 — — Surface # 1213 14 15 k= −7.8325E+00 −1.6482E+01 −2.4885E+00 −1.6844E+00 A4=−4.3177E−02 −7.1026E−03 −3.7824E−01 −2.8445E−01 A6=  3.7571E−02 1.0375E−02  1.9106E−01  1.6710E−01 A8= −8.2490E−02 −2.6953E−02−5.8441E−02 −7.5149E−02 A10=  5.0484E−02  1.1229E−02  1.3525E−02 2.2737E−02 A12= −1.8279E−02 −1.7063E−03 −2.2716E−03 −4.1796E−03 A14= 3.0190E−03  8.1918E−05  2.3113E−04  4.1497E−04 A16= — — −1.0303E−05−1.6948E−05

In the 8th embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of these parameters shown in thefollowing table are the same as those stated in the 1st embodiment withcorresponding values for the 8th embodiment, so an explanation in thisregard will not be provided again.

Moreover, these parameters can be calculated from Table 15 and Table 16as the following values and satisfy the following conditions:

8th Embodiment f [mm] 3.93 (R13 − R14)/(R13 + R14) 0.06 Fno 2.30 |f1/f2|0.54 HFOV [deg.] 35.1 f/f3 0.01 Nmax 1.639 |f1/f7| 0.06 V2 23.5 |f/fj|max 1.15 CT1/CT2 2.06 f/EPD 2.30 T23/CT2 0.98 Yc62/Yc61 1.19 T23/T341.29 Yc62/Yc72 1.03 (T12/T23) + (T34/ 1.22 Yc72/f 0.30 T45) + (T56/T67)R1/R2 0.06 ΣAT/ImgH 0.37 f/R6 0.95 SD/TD 0.86 f/R12 1.71 TL/f 1.28 R14/f0.32 TL/ImgH 1.76 (R11 − R12)/(R11 + R12) −0.04

9th Embodiment

FIG. 17 is a schematic view of an image capturing unit according to the9th embodiment of the present disclosure. FIG. 18 shows, in order fromleft to right, spherical aberration curves, astigmatic field curves anda distortion curve of the image capturing unit according to the 9thembodiment. In FIG. 17, the image capturing unit includes thephotographing optical lens assembly (its reference numeral is omitted)of the present disclosure and an image sensor 995. The photographingoptical lens assembly includes, in order from an object side to an imageside, a first lens element 910, an aperture stop 900, a second lenselement 920, a third lens element 930, a fourth lens element 940, afifth lens element 950, a sixth lens element 960, a seventh lens element970, an IR-cut filter 980 and an image surface 990, wherein thephotographing optical lens assembly has a total of seven non-cementedlens elements (910-970) with refractive power.

The first lens element 910 with positive refractive power has anobject-side surface 911 being convex in a paraxial region thereof and animage-side surface 912 being concave in a paraxial region thereof. Thefirst lens element 910 is made of glass material and has the object-sidesurface 911 and the image-side surface 912 being both aspheric.

The second lens element 920 with negative refractive power has anobject-side surface 921 being convex in a paraxial region thereof and animage-side surface 922 being concave in a paraxial region thereof. Thesecond lens element 920 is made of plastic material and has theobject-side surface 921 and the image-side surface 922 being bothaspheric.

The third lens element 930 with negative refractive power has anobject-side surface 931 being convex in a paraxial region thereof and animage-side surface 932 being concave in a paraxial region thereof. Thethird lens element 930 is made of plastic material and has theobject-side surface 931 and the image-side surface 932 being bothaspheric.

The fourth lens element 940 with positive refractive power has anobject-side surface 941 being convex in a paraxial region thereof and animage-side surface 942 being convex in a paraxial region thereof. Thefourth lens element 940 is made of plastic material and has theobject-side surface 941 and the image-side surface 942 being bothaspheric.

The fifth lens element 950 with negative refractive power has anobject-side surface 951 being concave in a paraxial region thereof andan image-side surface 952 being convex in a paraxial region thereof. Thefifth lens element 950 is made of plastic material and has theobject-side surface 951 and the image-side surface 952 being bothaspheric.

The sixth lens element 960 with negative refractive power has anobject-side surface 961 being convex in a paraxial region thereof and animage-side surface 962 being concave in a paraxial region thereof. Thesixth lens element 960 is made of plastic material and has theobject-side surface 961 and the image-side surface 962 being bothaspheric. The image-side surface 962 of the sixth lens element 960 hasat least one inflection point.

The seventh lens element 970 with positive refractive power has anobject-side surface 971 being convex in a paraxial region thereof and animage-side surface 972 being concave in a paraxial region thereof. Thesixth lens element 970 is made of plastic material and has theobject-side surface 971 and the image-side surface 972 being bothaspheric. The image-side surface 972 of the seventh lens element 970 hasat least one inflection point.

The IR-cut filter 980 is made of glass and located between the seventhlens element 970 and the image surface 990, and will not affect thefocal length of the photographing optical lens assembly. The imagesensor 995 is disposed on or near the image surface 990 of thephotographing optical lens assembly.

The detailed optical data of the 9th embodiment are shown in Table 17and the aspheric surface data are shown in Table 18 below.

TABLE 17 9th Embodiment f = 3.94 mm, Fno = 2.25, HFOV = 35.6 deg.Curvature Focal Surface# Radius Thickness Material Index Abbe # Length 0Object Plano Infinity 1 Lens 1 1.833 (ASP) 0.524 Glass 1.571 50.9 3.52 218.842 (ASP) 0.035 3 Ape. Stop Plano 0.035 4 Lens 2 3.177 (ASP) 0.226Plastic 1.634 23.8 −6.57 5 1.752 (ASP) 0.196 6 Lens 3 4.093 (ASP) 0.459Plastic 1.544 55.9 −140.77 7 3.732 (ASP) 0.146 8 Lens 4 5.034 (ASP)0.428 Plastic 1.544 55.9 6.27 9 −10.294 (ASP) 0.249 10 Lens 5 −1.831(ASP) 0.359 Plastic 1.634 23.8 −7.39 11 −3.232 (ASP) 0.069 12 Lens 62.231 (ASP) 0.414 Plastic 1.634 23.8 −126.44 13 2.015 (ASP) 0.245 14Lens 7 1.278 (ASP) 0.612 Plastic 1.544 55.9 17.83 15 1.223 (ASP) 0.50016 IR-cut filter Plano 0.300 Glass 1.517 64.2 — 17 Plano 0.225 18 ImagePlano — Note: Reference wavelength is 587.6 nm (d-line).

TABLE 18 Aspheric Coefficients Surface # 1 2 4 5 6 k= 9.3252E−02−8.4787E+01 −3.1108E+01 −1.3832E+01 −1.9985E+00 A4= 9.8768E−04−1.3431E−01 −1.7399E−01  1.1721E−01 −4.5050E−03 A6= −2.0147E−02  3.4294E−01  4.0378E−01 −2.3068E−01 −2.3872E−02 A8= 4.4855E−02−5.1264E−01 −5.1653E−01  4.9650E−01  2.7032E−02 A10= −7.0722E−02  3.9681E−01  3.8741E−01 −5.7138E−01 −4.4869E−02 A12= 4.8304E−02−1.4209E−01 −1.5779E−01  3.2529E−01  3.2373E−02 A14= −1.9692E−02  6.1719E−03  3.6747E−02 −5.5559E−02 −5.6086E−03 Surface # 7 8 9 10 11 k=−8.8924E+00 −4.9073E+01 −7.4884E+01 7.7111E−01 −1.1979E+00 A4=−1.8163E−03 −1.4460E−02 −1.0542E−01 −3.7164E−02  −1.7856E−01 A6=−7.1557E−03 −2.9994E−02  1.2028E−01 2.7725E−01  2.6623E−01 A8=−5.8409E−03 −1.4724E−02 −1.0432E−01 −4.1641E−01  −2.9951E−01 A10=−1.2658E−02  4.1849E−03 −1.1771E−01 3.9853E−01  2.1875E−01 A12=−6.6514E−07  5.7789E−07  3.0728E−01 −1.7180E−01  −8.0616E−02 A14= — —−2.0461E−01 2.4453E−02  1.1550E−02 A16= — —  4.5153E−02 — — Surface # 1213 14 15 k= −9.9793E+00 −1.6998E+01 −2.7718E+00 −1.8207E+00 A4=−4.3061E−02 −1.3672E−02 −3.7780E−01 −2.8260E−01 A6=  3.6984E−02 1.0448E−02  1.9095E−01  1.6721E−01 A8= −8.2847E−02 −2.6832E−02−5.8437E−02 −7.5159E−02 A10=  5.0458E−02  1.1234E−02  1.3526E−02 2.2733E−02 A12= −1.8292E−02 −1.7063E−03 −2.2714E−03 −4.1799E−03 A14= 3.0175E−03  8.1733E−05  2.3117E−04  4.1498E−04 A16= — — −1.0297E−05−1.6947E−05

In the 9th embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of these parameters shown in thefollowing table are the same as those stated in the 1st embodiment withcorresponding values for the 9th embodiment, so an explanation in thisregard will not be provided again.

Moreover, these parameters can be calculated from Table 17 and Table 18as the following values and satisfy the following conditions:

9th Embodiment f [mm] 3.94 (R13 − R14)/(R13 + R14) 0.02 Fno 2.25 |f1/f2|0.54 HFOV [deg.] 35.6 f/f3 −0.03 Nmax 1.634 |f1/f7| 0.20 V2 23.8 |f/fj|max 1.12 CT1/CT2 2.32 f/EPD 2.25 T23/CT2 0.87 Yc62/Yc61 1.17 T23/T341.34 Yc62/Yc72 0.98 (T12/T23) + (T34/ 1.23 Yc72/f 0.30 T45) + (T56/T67)R1/R2 0.10 ΣAT/ImgH 0.34 f/R6 1.05 SD/TD 0.86 f/R12 1.95 TL/f 1.28 R14/f0.31 TL/ImgH 1.76 (R11 − R12)/(R11 + R12) 0.05

10th Embodiment

FIG. 19 is a schematic view of an image capturing unit according to the10th embodiment of the present disclosure. FIG. 20 shows, in order fromleft to right, spherical aberration curves, astigmatic field curves anda distortion curve of the image capturing unit according to the 10thembodiment. In FIG. 19, the image capturing unit includes thephotographing optical lens assembly (its reference numeral is omitted)of the present disclosure and an image sensor 1095. The photographingoptical lens assembly includes, in order from an object side to an imageside, a first lens element 1010, a second lens element 1020, an aperturestop 1000, a third lens element 1030, a fourth lens element 1040, afifth lens element 1050, a sixth lens element 1060, a seventh lenselement 1070, an IR-cut filter 1080 and an image surface 1090, whereinthe photographing optical lens assembly has a total of sevennon-cemented lens elements (1010-1070) with refractive power.

The first lens element 1010 with positive refractive power has anobject-side surface 1011 being convex in a paraxial region thereof andan image-side surface 1012 being convex in a paraxial region thereof.The first lens element 1010 is made of glass material and has theobject-side surface 1011 and the image-side surface 1012 being bothaspheric.

The second lens element 1020 with positive refractive power has anobject-side surface 1021 being convex in a paraxial region thereof andan image-side surface 1022 being concave in a paraxial region thereof.The second lens element 1020 is made of plastic material and has theobject-side surface 1021 and the image-side surface 1022 being bothaspheric.

The third lens element 1030 with negative refractive power has anobject-side surface 1031 being convex in a paraxial region thereof andan image-side surface 1032 being concave in a paraxial region thereof.The third lens element 1030 is made of plastic material and has theobject-side surface 1031 and the image-side surface 1032 being bothaspheric.

The fourth lens element 1040 with positive refractive power has anobject-side surface 1041 being convex in a paraxial region thereof andan image-side surface 1042 being convex in a paraxial region thereof.The fourth lens element 1040 is made of plastic material and has theobject-side surface 1041 and the image-side surface 1042 being bothaspheric.

The fifth lens element 1050 with negative refractive power has anobject-side surface 1051 being concave in a paraxial region thereof andan image-side surface 1052 being convex in a paraxial region thereof.The fifth lens element 1050 is made of plastic material and has theobject-side surface 1051 and the image-side surface 1052 being bothaspheric.

The sixth lens element 1060 with positive refractive power has anobject-side surface 1061 being convex in a paraxial region thereof andan image-side surface 1062 being concave in a paraxial region thereof.The sixth lens element 1060 is made of plastic material and has theobject-side surface 1061 and the image-side surface 1062 being bothaspheric. The image-side surface 1062 of the sixth lens element 1060 hasat least one inflection point.

The seventh lens element 1070 with negative refractive power has anobject-side surface 1071 being convex in a paraxial region thereof andan image-side surface 1072 being concave in a paraxial region thereof.The sixth lens element 1070 is made of plastic material and has theobject-side surface 1071 and the image-side surface 1072 being bothaspheric. The image-side surface 1072 of the seventh lens element 1070has at least one inflection point.

The IR-cut filter 1080 is made of glass and located between the seventhlens element 1070 and the image surface 1090, and will not affect thefocal length of the photographing optical lens assembly. The imagesensor 1095 is disposed on or near the image surface 1090 of thephotographing optical lens assembly.

The detailed optical data of the 10th embodiment are shown in Table 19and the aspheric surface data are shown in Table 20 below.

TABLE 19 10th Embodiment f = 4.31 mm, Fno = 2.35, HFOV = 38.7 deg.Curvature Focal Surface# Radius Thickness Material Index Abbe # Length 0Object Plano Infinity 1 Lens 1 4.017 (ASP) 0.524 Glass 1.571 50.9 6.65 2−65.317 (ASP) 0.100 3 Lens 2 5.011 (ASP) 0.243 Plastic 1.535 55.7 27.494 7.473 (ASP) 0.052 5 Ape. Stop Plano 0.035 6 Lens 3 5.645 (ASP) 0.240Plastic 1.544 55.9 −12.38 7 3.025 (ASP) 0.285 8 Lens 4 3.931 (ASP) 0.625Plastic 1.535 55.7 4.84 9 −7.163 (ASP) 0.184 10 Lens 5 −1.886 (ASP)0.685 Plastic 1.639 23.5 −6.50 11 −3.944 (ASP) 0.160 12 Lens 6 2.759(ASP) 0.939 Plastic 1.535 55.7 9.03 13 5.668 (ASP) 0.408 14 Lens 7 3.098(ASP) 0.702 Plastic 1.535 55.7 −8.02 15 1.657 (ASP) 0.550 16 IR-cutfilter Plano 0.300 Glass 1.517 64.2 — 17 Plano 0.174 18 Image Plano —Note: Reference wavelength is 587.6 nm (d-line).

TABLE 20 Aspheric Coefficients Surface # 1 2 3 4 6 k= −4.4121E−01−9.0000E+01 −5.2647E+01 −9.0000E+01   6.7438E+00 A4= −2.7925E−03−6.0729E−02 −8.3879E−02 2.3453E−02  1.2620E−02 A6= −1.4523E−03 1.0296E−01  1.1013E−01 −7.8608E−02  −3.4785E−02 A8=  8.9957E−03−8.7060E−02 −1.1750E−01 7.6809E−02 −4.5462E−02 A10= −7.1935E−03 4.2813E−02  5.1732E−02 −1.0782E−01  −1.1942E−02 A12=  2.8100E−03−1.1746E−02  7.2692E−03 6.5612E−02  4.4816E−02 A14= −5.6176E−04 1.3249E−03 −6.2848E−03 9.1499E−03 −2.5794E−02 Surface # 7 8 9 10 11 k=−1.8282E+01 −3.4370E+01  3.1289E+01 8.7442E−01 −2.2726E+00 A4=−2.0792E−02 −3.0596E−03 −7.6244E−02 −1.4822E−02  −7.7815E−02 A6=−2.9096E−02 −1.7556E−02  2.5788E−02 6.8034E−02  8.1748E−02 A8=−2.9052E−02 −1.0621E−02 −2.5584E−02 −7.5044E−02  −5.3130E−02 A10=−5.7286E−03 −2.9892E−03 −1.6928E−02 4.4752E−02  2.3619E−02 A12=−3.3949E−07 −3.9023E−03  1.9201E−02 −1.0306E−02  −5.3502E−03 A14= — —−7.2368E−03 1.0731E−03  5.2246E−04 A16= — —  1.1131E−03 — — Surface # 1213 14 15 k= −1.6732E+01 −8.6779E+01 −2.4628E+00 −1.4309E+00 A4=−2.0969E−02 −2.5725E−03 −1.7970E−01 −1.3653E−01 A6=  1.0714E−02 3.6469E−03  5.5732E−02  4.8495E−02 A8= −1.4568E−02 −4.7807E−03−1.0371E−02 −1.3336E−02 A10=  5.1337E−03  1.2153E−03  1.4666E−03 2.4665E−03 A12= −1.2721E−03 −1.1342E−04 −1.5039E−04 −2.7666E−04 A14= 1.4426E−04  3.2593E−06  9.3177E−06  1.6751E−05 A16= — — −2.5810E−07−4.1855E−07

In the 10th embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of these parameters shown in thefollowing table are the same as those stated in the 1st embodiment withcorresponding values for the 10th embodiment, so an explanation in thisregard will not be provided again.

Moreover, these parameters can be calculated from Table 19 and Table 20as the following values and satisfy the following conditions:

10th Embodiment f [mm] 4.31 (R13 − R14)/(R13 + R14) 0.30 Fno 2.35|f1/f2| 0.24 HFOV [deg.] 38.7 f/f3 −0.35 Nmax 1.639 |f1/f7| 0.83 V2 55.7|f/fj| max 0.89 CT1/CT2 2.16 f/EPD 2.35 T23/CT2 0.36 Yc62/Yc61 1.15T23/T34 0.31 Yc62/Yc72 0.88 (T12/T23) + (T34/ 3.09 Yc72/f 0.36 T45) +(T56/T67) R1/R2 −0.06 ΣAT/ImgH 0.34 f/R6 1.42 SD/TD 0.82 f/R12 0.76 TL/f1.44 R14/f 0.38 TL/ImgH 1.72 (R11 − R12)/(R11 + R12) −0.35

11th Embodiment

FIG. 21 is a schematic view of an image capturing unit according to the11th embodiment of the present disclosure. FIG. 22 shows, in order fromleft to right, spherical aberration curves, astigmatic field curves anda distortion curve of the image capturing unit according to the 11thembodiment. In FIG. 21, the image capturing unit includes thephotographing optical lens assembly (its reference numeral is omitted)of the present disclosure and an image sensor 1195. The photographingoptical lens assembly includes, in order from an object side to an imageside, a first lens element 1110, a second lens element 1120, an aperturestop 1100, a third lens element 1130, a fourth lens element 1140, afifth lens element 1150, a sixth lens element 1160, a seventh lenselement 1170, an IR-cut filter 1180 and an image surface 1190, whereinthe photographing optical lens assembly has a total of sevennon-cemented lens elements (1110-1170) with refractive power.

The first lens element 1110 with positive refractive power has anobject-side surface 1111 being convex in a paraxial region thereof andan image-side surface 1112 being convex in a paraxial region thereof.The first lens element 1110 is made of plastic material and has theobject-side surface 1111 and the image-side surface 1112 being bothaspheric.

The second lens element 1120 with negative refractive power has anobject-side surface 1121 being convex in a paraxial region thereof andan image-side surface 1122 being concave in a paraxial region thereof.The second lens element 1120 is made of plastic material and has theobject-side surface 1121 and the image-side surface 1122 being bothaspheric.

The third lens element 1130 with positive refractive power has anobject-side surface 1131 being convex in a paraxial region thereof andan image-side surface 1132 being concave in a paraxial region thereof.The third lens element 1130 is made of plastic material and has theobject-side surface 1131 and the image-side surface 1132 being bothaspheric.

The fourth lens element 1140 with positive refractive power has anobject-side surface 1141 being convex in a paraxial region thereof andan image-side surface 1142 being convex in a paraxial region thereof.The fourth lens element 1140 is made of plastic material and has theobject-side surface 1141 and the image-side surface 1142 being bothaspheric.

The fifth lens element 1150 with negative refractive power has anobject-side surface 1151 being concave in a paraxial region thereof andan image-side surface 1152 being convex in a paraxial region thereof.The fifth lens element 1150 is made of plastic material and has theobject-side surface 1151 and the image-side surface 1152 being bothaspheric.

The sixth lens element 1160 with positive refractive power has anobject-side surface 1161 being convex in a paraxial region thereof andan image-side surface 1162 being concave in a paraxial region thereof.The sixth lens element 1160 is made of plastic material and has theobject-side surface 1161 and the image-side surface 1162 being bothaspheric. The image-side surface 1162 of the sixth lens element 1160 hasat least one inflection point.

The seventh lens element 1170 with negative refractive power has anobject-side surface 1171 being convex in a paraxial region thereof andan image-side surface 1172 being concave in a paraxial region thereof.The sixth lens element 1170 is made of plastic material and has theobject-side surface 1171 and the image-side surface 1172 being bothaspheric. The image-side surface 1172 of the seventh lens element 1170has at least one inflection point.

The IR-cut filter 1180 is made of glass and located between the seventhlens element 1170 and the image surface 1190, and will not affect thefocal length of the photographing optical lens assembly. The imagesensor 1195 is disposed on or near the image surface 1190 of thephotographing optical lens assembly.

The detailed optical data of the 11th embodiment are shown in Table 21and the aspheric surface data are shown in Table 22 below.

TABLE 21 11th Embodiment f = 3.97 mm, Fno = 2.30, HFOV = 41.3 deg.Curvature Focal Surface# Radius Thickness Material Index Abbe # Length 0Object Plano Infinity 1 Lens 1 5.689 (ASP) 0.480 Plastic 1.572 56.0 6.672 −11.221 (ASP) 0.100 3 Lens 2 20.389 (ASP) 0.240 Plastic 1.614 25.6−13.91 4 5.993 (ASP) 0.067 5 Ape. Stop Plano 0.035 6 Lens 3 2.310 (ASP)0.308 Plastic 1.535 55.7 25.32 7 2.656 (ASP) 0.341 8 Lens 4 4.637 (ASP)0.543 Plastic 1.535 55.7 5.36 9 −7.207 (ASP) 0.251 10 Lens 5 −1.862(ASP) 0.265 Plastic 1.634 23.8 −5.66 11 −4.085 (ASP) 0.249 12 Lens 62.265 (ASP) 0.889 Plastic 1.535 55.7 7.85 13 4.247 (ASP) 0.352 14 Lens 72.131 (ASP) 0.763 Plastic 1.535 55.7 −12.27 15 1.408 (ASP) 0.550 16IR-cut filter Plano 0.300 Glass 1.517 64.2 — 17 Plano 0.131 18 ImagePlano — Note: Reference wavelength is 587.6 nm (d-line).

TABLE 22 Aspheric Coefficients Surface # 1 2 3 4 6 k= −1.4769E+01−4.5979E+01 6.2402E+01 −5.4000E+01 −7.3837E+00 A4= −9.8407E−03−5.9328E−02 −7.3776E−02  −6.8889E−03  2.2836E−03 A6=  1.5354E−03 1.0257E−01 1.0799E−01 −8.7287E−02 −4.0189E−02 A8=  9.7206E−03−8.6269E−02 −1.2667E−01   9.4593E−02 −4.3427E−02 A10= −7.4572E−03 4.2217E−02 5.0677E−02 −9.9074E−02 −2.0134E−04 A12=  2.5872E−03−1.2253E−02 7.1679E−03  7.0383E−02  5.9565E−02 A14= −5.0160E−04 1.5058E−03 −6.4004E−03  −1.7445E−02 −4.6875E−02 Surface # 7 8 9 10 11k= −9.2040E+00 −4.4510E+01  2.8925E+01 7.2093E−01 6.5032E−01 A4=−2.9656E−02  2.6417E−03 −5.5882E−02 −7.1097E−03  −8.2312E−02  A6=−3.8413E−02 −1.5849E−02  2.9817E−02 6.5856E−02 8.4288E−02 A8=−1.8369E−02 −6.8958E−03 −2.1791E−02 −7.5870E−02  −5.2882E−02  A10=−1.2093E−02 −1.3932E−03 −1.5702E−02 4.5555E−02 2.3573E−02 A12=−6.8416E−07 −5.5272E−03  1.9813E−02 −9.1657E−03  −5.2664E−03  A14= — —−6.6508E−03 2.1721E−03 6.6547E−04 A16= — —  1.1131E−03 — — Surface # 1213 14 15 k= −9.5414E+00 −5.9601E+01  −3.2824E+00 −1.9943E+00 A4=−1.5280E−02 4.4740E−03 −1.8301E−01 −1.2462E−01 A6=  1.0160E−022.4525E−03  5.5965E−02  4.7412E−02 A8= −1.3350E−02 −4.8344E−03 −1.0343E−02 −1.3383E−02 A10=  5.0657E−03 1.2126E−03  1.4678E−03 2.4720E−03 A12= −1.3056E−03 −1.1296E−04  −1.5047E−04 −2.7621E−04 A14= 1.4568E−04 3.5073E−06  9.3125E−06  1.6753E−05 A16= — — −2.5895E−07−4.2022E−07

In the 11th embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of these parameters shown in thefollowing table are the same as those stated in the 1st embodiment withcorresponding values for the 11th embodiment, so an explanation in thisregard will not be provided again.

Moreover, these parameters can be calculated from Table 21 and Table 22as the following values and satisfy the following conditions:

11th Embodiment f [mm] 3.97 (R13 − R14)/(R13 + R14) 0.20 Fno 2.30|f1/f2| 0.48 HFOV [deg.] 41.3 f/f3 0.16 Nmax 1.634 |f1/f7| 0.54 V2 25.6|f/fj| max 0.74 CT1/CT2 2.00 f/EPD 2.30 T23/CT2 0.43 Yc62/Yc61 1.11T23/T34 0.30 Yc62/Yc72 0.90 (T12/T23) + (T34/ 3.05 Yc72/f 0.42 T45) +(T56/T67) R1/R2 −0.51 ΣAT/ImgH 0.39 f/R6 1.49 SD/TD 0.82 f/R12 0.93 TL/f1.48 R14/f 0.36 TL/ImgH 1.63 (R11 − R12)/(R11 + R12) −0.30

12th Embodiment

FIG. 23 is a schematic view of an image capturing unit according to the12th embodiment of the present disclosure. FIG. 24 shows, in order fromleft to right, spherical aberration curves, astigmatic field curves anda distortion curve of the image capturing unit according to the 12thembodiment. In FIG. 23, the image capturing unit includes thephotographing optical lens assembly (its reference numeral is omitted)of the present disclosure and an image sensor 1295. The photographingoptical lens assembly includes, in order from an object side to an imageside, a first lens element 1210, a second lens element 1220, an aperturestop 1200, a third lens element 1230, a fourth lens element 1240, afifth lens element 1250, a sixth lens element 1260, a seventh lenselement 1270, an IR-cut filter 1280 and an image surface 1290, whereinthe photographing optical lens assembly has a total of sevennon-cemented lens elements (1210-1270) with refractive power.

The first lens element 1210 with positive refractive power has anobject-side surface 1211 being convex in a paraxial region thereof andan image-side surface 1212 being convex in a paraxial region thereof.The first lens element 1210 is made of plastic material and has theobject-side surface 1211 and the image-side surface 1212 being bothaspheric.

The second lens element 1220 with negative refractive power has anobject-side surface 1221 being concave in a paraxial region thereof andan image-side surface 1222 being convex in a paraxial region thereof.The second lens element 1220 is made of plastic material and has theobject-side surface 1221 and the image-side surface 1222 being bothaspheric.

The third lens element 1230 with positive refractive power has anobject-side surface 1231 being convex in a paraxial region thereof andan image-side surface 1232 being concave in a paraxial region thereof.The third lens element 1230 is made of plastic material and has theobject-side surface 1231 and the image-side surface 1232 being bothaspheric.

The fourth lens element 1240 with positive refractive power has anobject-side surface 1241 being convex in a paraxial region thereof andan image-side surface 1242 being convex in a paraxial region thereof.The fourth lens element 1240 is made of plastic material and has theobject-side surface 1241 and the image-side surface 1242 being bothaspheric.

The fifth lens element 1250 with negative refractive power has anobject-side surface 1251 being concave in a paraxial region thereof andan image-side surface 1252 being convex in a paraxial region thereof.The fifth lens element 1250 is made of plastic material and has theobject-side surface 1251 and the image-side surface 1252 being bothaspheric.

The sixth lens element 1260 with positive refractive power has anobject-side surface 1261 being convex in a paraxial region thereof andan image-side surface 1262 being concave in a paraxial region thereof.The sixth lens element 1260 is made of plastic material and has theobject-side surface 1261 and the image-side surface 1262 being bothaspheric. The image-side surface 1262 of the sixth lens element 1260 hasat least one inflection point.

The seventh lens element 1270 with negative refractive power has anobject-side surface 1271 being convex in a paraxial region thereof andan image-side surface 1272 being concave in a paraxial region thereof.The sixth lens element 1270 is made of plastic material and has theobject-side surface 1271 and the image-side surface 1272 being bothaspheric. The image-side surface 1272 of the seventh lens element 1270has at least one inflection point.

The IR-cut filter 1280 is made of glass and located between the seventhlens element 1270 and the image surface 1290, and will not affect thefocal length of the photographing optical lens assembly. The imagesensor 1295 is disposed on or to near the image surface 1290 of thephotographing optical lens assembly.

The detailed optical data of the 12th embodiment are shown in Table 23and the aspheric surface data are shown in Table 24 below.

TABLE 23 12th Embodiment f = 4.11 mm, Fno = 2.30, HFOV = 40.9 deg.Curvature Focal Surface# Radius Thickness Material Index Abbe # Length 0Object Plano Infinity 1 Lens 1 11.225 (ASP) 0.449 Plastic 1.572 56.08.63 2 −8.686 (ASP) 0.120 3 Lens 2 −11.334 (ASP) 0.280 Plastic 1.61425.6 −41.01 4 −20.802 (ASP) 0.021 5 Ape. Stop Plano 0.082 6 Lens 3 2.316(ASP) 0.303 Plastic 1.544 55.9 99.54 7 2.308 (ASP) 0.351 8 Lens 4 4.401(ASP) 0.576 Plastic 1.535 55.7 5.00 9 −6.516 (ASP) 0.293 10 Lens 5−1.870 (ASP) 0.285 Plastic 1.634 23.8 −5.53 11 −4.245 (ASP) 0.278 12Lens 6 2.684 (ASP) 0.775 Plastic 1.535 55.7 5.05 13 354.425 (ASP) 0.79614 Lens 7 1.960 (ASP) 0.391 Plastic 1.530 55.8 −4.99 15 1.048 (ASP)0.550 16 IR-cut filter Plano 0.300 Glass 1.517 64.2 — 17 Plano 0.159 18Image Plano — Note: Reference wavelength is 587.6 nm (d-line).

TABLE 24 Aspheric Coefficients Surface # 1 2 3 4 6 k= −5.2340E+01−1.4070E+01 −6.5000E+01 −4.4176E+01 −5.8692E+00 A4= −9.3247E−03−6.3047E−02 −6.8302E−02  2.1605E−02  1.2530E−02 A6=  2.8083E−03 1.0233E−01  1.1349E−01 −5.5147E−02 −1.8222E−02 A8=  8.8228E−03−8.5855E−02 −1.2184E−01  7.9171E−02 −1.3389E−02 A10= −7.7192E−03 4.2245E−02  5.1446E−02 −1.0089E−01 −1.7729E−02 A12=  2.6154E−03−1.2341E−02  6.9862E−03  7.2785E−02  2.2049E−02 A14= −4.6711E−04 1.5302E−03 −7.8363E−03 −1.7160E−02 −1.1286E−02 Surface # 7 8 9 10 11 k=−1.0396E+01 −4.4804E+01  1.3926E+01  6.3500E−01 −6.2043E−01 A4=−2.6355E−02  5.4948E−03 −5.1982E−02 −8.4509E−03 −7.9694E−02 A6=−2.5235E−02 −1.8601E−02  1.9219E−02  6.8293E−02  8.4533E−02 A8=−7.3120E−03 −7.1373E−03 −2.0654E−02 −7.6621E−02 −5.2667E−02 A10=−1.0174E−02  3.1339E−03 −1.4377E−02  4.4943E−02  2.3686E−02 A12=−6.7181E−07  6.0750E−04  2.0303E−02 −8.9572E−03 −5.1959E−03 A14=−4.4927E−08 −1.1776E−06 −6.2652E−03  2.2942E−03  7.3800E−04 A16= — — 1.1131E−03 −1.2373E−04 — Surface # 12 13 14 15 k= −1.2794E+01−9.0000E+01 −1.1696E+01 −4.1576E+00 A4= −1.9305E−02 −2.5445E−03−1.9325E−01 −1.0658E−01 A6=  1.1579E−02  5.5787E−03  5.6105E−02 4.4921E−02 A8= −1.2507E−02 −4.9614E−03 −1.0266E−02 −1.3408E−02 A10= 5.0020E−03  1.1975E−03  1.4753E−03  2.4798E−03 A12= −1.3328E−03−1.1561E−04 −1.4985E−04 −2.7587E−04 A14=  1.5503E−04  3.2093E−06 9.2933E−06  1.6756E−05 A16= — — −2.9255E−07 −4.2257E−07

In the 12th embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of these parameters shown in thefollowing table are the same as those stated in the 1st embodiment withcorresponding values for the 12th embodiment, so an explanation in thisregard will not be provided again.

Moreover, these parameters can be calculated from Table 23 and Table 24as the following values and satisfy the following conditions:

12th Embodiment f [mm] 4.11 (R13 − R14)/(R13 + R14) 0.30 Fno 2.30|f1/f2| 0.21 HFOV [deg.] 40.9 f/f3 0.04 Nmax 1.634 |f1/f7| 1.73 V2 25.6|f/fj| max 0.82 CT1/CT2 1.60 f/EPD 2.30 T23/CT2 0.37 Yc62/Yc61 0.68T23/T34 0.29 Yc62/Yc72 0.60 (T12/T23) + (T34/ 2.71 Yc72/f 0.37 T45) +(T56/T67) R1/R2 −1.29 ΣAT/ImgH 0.52 f/R6 1.78 SD/TD 0.83 f/R12 0.01 TL/f1.46 R14/f 0.25 TL/ImgH 1.62 (R11 − R12)/(R11 + R12) −0.98

13th Embodiment

FIG. 25 is a schematic view of an image capturing unit according to the13th embodiment of the present disclosure. FIG. 26 shows, in order fromleft to right, spherical aberration curves, astigmatic field curves anda distortion curve of the image capturing unit according to the 13thembodiment. In FIG. 25, the image capturing unit includes thephotographing optical lens assembly (its reference numeral is omitted)of the present disclosure and an image sensor 1395. The photographingoptical lens assembly includes, in order from an object side to an imageside, a first lens element 1310, an aperture stop 1300, a second lenselement 1320, a third lens element 1330, a fourth lens element 1340, afifth lens element 1350, a sixth lens element 1360, a seventh lenselement 1370, an IR-cut filter 1380 and an image surface 1390, whereinthe photographing optical lens assembly has a total of sevennon-cemented lens elements (1310-1370) with refractive power.

The first lens element 1310 with positive refractive power has anobject-side surface 1311 being convex in a paraxial region thereof andan image-side surface 1312 being concave in a paraxial region thereof.The first lens element 1310 is made of plastic material and has theobject-side surface 1311 and the image-side surface 1312 being bothaspheric.

The second lens element 1320 with negative refractive power has anobject-side surface 1321 being convex in a paraxial region thereof andan image-side surface 1322 being concave in a paraxial region thereof.The second lens element 1320 is made of plastic material and has theobject-side surface 1321 and the image-side surface 1322 being bothaspheric.

The third lens element 1330 with positive refractive power has anobject-side surface 1331 being convex in a paraxial region thereof andan image-side surface 1332 being concave in a paraxial region thereof.The third lens element 1330 is made of plastic material and has theobject-side surface 1331 and the image-side surface 1332 being bothaspheric.

The fourth lens element 1340 with positive refractive power has anobject-side surface 1341 being convex in a paraxial region thereof andan image-side surface 1342 being convex in a paraxial region thereof.The fourth lens element 1340 is made of plastic material and has theobject-side surface 1341 and the image-side surface 1342 being bothaspheric.

The fifth lens element 1350 with positive refractive power has anobject-side surface 1351 being concave in a paraxial region thereof andan image-side surface 1352 being convex in a paraxial region thereof.The fifth lens element 1350 is made of plastic material and has theobject-side surface 1351 and the image-side surface 1352 being bothaspheric.

The sixth lens element 1360 with negative refractive power has anobject-side surface 1361 being convex in a paraxial region thereof andan image-side surface 1362 being concave in a paraxial region thereof.The sixth lens element 1360 is made of plastic material and has theobject-side surface 1361 and the image-side surface 1362 being bothaspheric. The image-side surface 1362 of the sixth lens element 1360 hasat least one inflection point.

The seventh lens element 1370 with negative refractive power has anobject-side surface 1371 being convex in a paraxial region thereof andan image-side surface 1372 being concave in a paraxial region thereof.The sixth lens element 1370 is made of plastic material and has theobject-side surface 1371 and the image-side surface 1372 being bothaspheric. The image-side surface 1372 of the seventh lens element 1370has at least one inflection point.

The IR-cut filter 1380 is made of glass and located between the seventhlens element 1370 and the image surface 1390, and will not affect thefocal length of the photographing optical lens assembly. The imagesensor 1395 is disposed on or near the image surface 1390 of thephotographing optical lens assembly.

The detailed optical data of the 13th embodiment are shown in Table 25and the aspheric surface data are shown in Table 26 below.

TABLE 25 13th Embodiment f = 5.18 mm, Fno = 2.05, HFOV = 36.2 deg.Curvature Focal Surface# Radius Thickness Material Index Abbe # Length 0Object Plano Infinity 1 Lens 1 2.385 (ASP) 1.008 Plastic 1.544 55.9 4.852 21.064 (ASP) 0.035 3 Ape. Stop Plano 0.035 4 Lens 2 3.958 (ASP) 0.240Plastic 1.640 23.3 −7.93 5 2.171 (ASP) 0.298 6 Lens 3 4.300 (ASP) 0.375Plastic 1.535 56.3 52.19 7 4.929 (ASP) 0.240 8 Lens 4 6.704 (ASP) 0.513Plastic 1.544 55.9 9.94 9 −27.268 (ASP) 0.384 10 Lens 5 −2.515 (ASP)0.483 Plastic 1.535 56.3 29.17 11 −2.311 (ASP) 0.050 12 Lens 6 4.013(ASP) 0.630 Plastic 1.535 56.3 −70.88 13 3.431 (ASP) 0.521 14 Lens 73.965 (ASP) 0.641 Plastic 1.544 55.9 −8.63 15 2.027 (ASP) 0.550 16IR-cut filter Plano 0.350 Glass 1.517 64.2 — 17 Plano 0.176 18 ImagePlano — Note: Reference wavelength is 587.6 nm (d-line).

TABLE 26 Aspheric Coefficients Surface # 1 2 4 5 6 k= 1.2342E−01−5.4024E+01 −3.0797E+01 −1.2300E+01 −3.4382E+00 A4= 6.2894E−04−5.1866E−02 −7.1581E−02  4.9076E−02 −2.9698E−03 A6= −3.9444E−03  7.0917E−02  8.1607E−02 −4.6676E−02 −4.3978E−03 A8= 4.8939E−03−5.6186E−02 −5.5232E−02  5.4443E−02  3.1752E−03 A10= −3.9053E−03  2.3824E−02  2.2933E−02 −3.2824E−02 −2.4545E−03 A12= 1.5291E−03−4.1985E−03 −4.5695E−03  1.0694E−02  1.0537E−03 A14= −2.5994E−04 −9.7570E−05  4.5844E−05 −1.4476E−03 −1.7663E−04 Surface # 7 8 9 10 11 k=−1.8245E+01 −6.5557E+01 −9.0000E+01 8.1992E−01 −7.2410E+00 A4=−6.9906E−03 −1.3965E−02 −5.3443E−02 −1.4757E−02  −7.0388E−02 A6=−3.8719E−03 −8.5228E−03  2.3836E−02 5.5912E−02  5.5116E−02 A8=−8.7173E−04 −1.7376E−03 −1.1745E−02 −4.6287E−02  −3.3072E−02 A10=−4.3155E−04  3.7579E−04 −7.1121E−03 2.3409E−02  1.2857E−02 A12= 2.5571E−05  5.6777E−05  9.5507E−03 −5.3994E−03  −2.5287E−03 A14= — —−3.4330E−03 4.0370E−04  1.9293E−04 A16= — —  4.0471E−04 — — Surface # 1213 14 15 k= −1.7387E+01 −2.6104E+01 −1.3857E+00 −1.5538E+00 A4=−1.2261E−02 −5.6535E−03 −1.4626E−01 −1.1057E−01 A6=  6.1487E−03 2.6134E−03  3.9603E−02  3.4560E−02 A8= −9.1594E−03 −2.9614E−03−6.4509E−03 −8.2963E−03 A10=  3.0021E−03  6.6053E−04  7.9560E−04 1.3376E−03 A12= −5.6901E−04 −5.3525E−05 −7.1210E−05 −1.3096E−04 A14= 5.0007E−05  1.3385E−06  3.8565E−06  6.9293E−06 A16= — — −9.2763E−08−1.5085E−07

In the 13th embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of these parameters shown in thefollowing table are the same as those stated in the 1st embodiment withcorresponding values for the 13th embodiment, so an explanation in thisregard will not be provided again.

Moreover, these parameters can be calculated from Table 25 and Table 26as the following values and satisfy the following conditions:

13th Embodiment f [mm] 5.18 (R13 − R14)/(R13 + R14) 0.32 Fno 2.05|f1/f2| 0.61 HFOV [deg.] 36.2 f/f3 0.10 Nmax 1.640 |f1/f7| 0.56 V2 23.3|f/fj| max 1.07 CT1/CT2 4.20 f/EPD 2.05 T23/CT2 1.24 Yc62/Yc61 1.21T23/T34 1.24 Yc62/Yc72 1.04 (T12/T23) + (T34/ 0.96 Yc72/f 0.29 T45) +(T56/T67) R1/R2 0.11 ΣAT/ImgH 0.40 f/R6 1.05 SD/TD 0.81 f/R12 1.51 TL/f1.26 R14/f 0.39 TL/ImgH 1.67 (R11 − R12)/(R11 + R12) 0.08

The foregoing image capturing unit is able to be installed in, but notlimited to, an electronic device. According to the present disclosure, aphotographing optical lens assembly provided in the disclosure includes,in order from an object side to an image side, a first lens element, asecond lens element, a third lens element, a fourth lens element, afifth lens element, a sixth lens element and a seventh lens element. Thephotographing optical lens assembly has a total of seven non-cementedlens elements with refractive power, wherein the sixth lens element hasan image-side surface being concave in a paraxial region thereof, andthe seventh lens element has an image-side surface being concave in aparaxial region thereof. When specific conditions are satisfied, it isfavorable for effectively reduce a back focal length of thephotographing optical lens assembly so as to keep a compact size.Furthermore, it is favorable for properly distributing the refractivepower of the photographing optical lens assembly adjacent to the objectside so as to correct the aberration. Moreover, it is also favorable forcontrolling the incident angle of the light projecting onto an imagesurface so as to keep sufficient incident light in the peripheral regionof the image. Meanwhile, it is favorable for further correcting theaberration of the off-axis so as to enhance the resolution of thephotographing optical lens assembly.

The foregoing description, for the purpose of explanation, has beendescribed with reference to specific embodiments. It is to be noted thatTABLES 1-26 show different data of the different embodiments; however,the data of the different embodiments are obtained from experiments. Theembodiments were chosen and described in order to best explain theprinciples of the disclosure and its practical applications, to therebyenable others skilled in the art to best utilize the disclosure andvarious embodiments with various modifications as are suited to theparticular use contemplated. The embodiments depicted above and theappended drawings are exemplary and are not intended to be exhaustive orto limit the scope of the present disclosure to the precise formsdisclosed. Many modifications and variations are possible in view of theabove teachings.

What is claimed is:
 1. A photographing optical lens assembly comprisingseven lens elements, the seven lens elements being, in order from anobject side to an image side, a first lens element, a second lenselement, a third lens element, a fourth lens element, a fifth lenselement, a sixth lens element and a seventh lens element; wherein thefirst lens element has positive refractive power, the fifth lens elementhas positive refractive power, the seventh lens element has animage-side surface being concave in a paraxial region thereof, and theimage-side surface of the seventh lens element has at least oneinflection point; wherein an Abbe number of the second lens element isV2, a maximum refractive index among the seven lens elements is Nmax, acurvature radius of the image-side surface of the seventh lens elementis R14, a focal length of the photographing optical lens assembly is f,and the following conditions are satisfied:V2≤21.4;1.640≤Nmax<1.750; and0<R14/f<0.7.
 2. The photographing optical lens assembly of claim 1,wherein the second lens element has negative refractive power, and thethird lens element has positive refractive power.
 3. The photographingoptical lens assembly of claim 1, wherein the sixth lens element haspositive refractive power, and each of the seven lens elements is asingle and non-cemented lens element.
 4. The photographing optical lensassembly of claim 1, wherein half of a maximal field of view of thephotographing optical lens assembly is HFOV, the focal length of thephotographing optical lens assembly is f, a curvature radius of animage-side surface of the third lens element is R6, and the followingconditions are satisfied:37.9[deg.]≤HFOV<45[deg.]; and−1.0<f/R6<2.5.
 5. The photographing optical lens assembly of claim 1,wherein the focal length of the photographing optical lens assembly isf, a focal length of the first lens element is f 1, a focal length ofthe second lens element is f2, a focal length of the third lens elementis f3, a focal length of the fourth lens element is f4, a focal lengthof the fifth lens element is f5, a focal length of the sixth lenselement is f6, a focal length of the seventh lens element is f7, a focallength of the j-th lens element is fj, a maximum absolute value amongthe ratios of f/f1, f/f2, f/f3, f/f4, f/f5, f/f6 and f/f7 is |f/fj|max,and the following condition is satisfied:|f/fj|max<1.8, wherein j=1,2,3,4,5,6,7.
 6. The photographing opticallens assembly of claim 1, further comprising an aperture stop, whereinthe focal length of the photographing optical lens assembly is f, anaxial distance between an object-side surface of the first lens elementand an image surface is TL, an axial distance between the aperture stopand the image-side surface of the seventh lens element is SD, an axialdistance between the object-side surface of the first lens element andthe image-side surface of the seventh lens element is TD, and thefollowing conditions are satisfied:3.0[mm]<f<6.5 [mm];0.80<TL/f<1.80; and0.75<SD/TD<1.1.
 7. The photographing optical lens assembly of claim 1,wherein a curvature radius of an object-side surface of the sixth lenselement and a curvature radius of an image-side surface of the sixthlens element have the same sign.
 8. A photographing optical lensassembly comprising seven lens elements, the seven lens elements being,in order from an object side to an image side, a first lens element, asecond lens element, a third lens element, a fourth lens element, afifth lens element, a sixth lens element and a seventh lens element;wherein the first lens element has positive refractive power, theseventh lens element has an image-side surface being concave in aparaxial region thereof, and the image-side surface of the seventh lenselement has at least one inflection point; wherein an Abbe number of thesecond lens element is V2, a maximum refractive index among the sevenlens elements is Nmax, a focal length of the photographing optical lensassembly is f, an entrance pupil diameter of the photographing opticallens assembly is EPD, a curvature radius of the image-side surface ofthe seventh lens element is R14, and the following conditions aresatisfied:V2≤21.4;1.640≤Nmax<1.750;1.2<f/EPD≤2.0; and0<R14/f<0.7.
 9. The photographing optical lens assembly of claim 8,wherein the first lens element has an object-side surface being convexin a paraxial region thereof and an image-side surface being concave ina paraxial region thereof, the second lens element with negativerefractive power has an object-side surface being convex in a paraxialregion thereof and an image-side surface being concave in a paraxialregion thereof, and the seventh lens element has negative refractivepower.
 10. The photographing optical lens assembly of claim 8, whereinthe fifth lens element has an object-side surface being concave in aparaxial region thereof.
 11. The photographing optical lens assembly ofclaim 8, wherein an axial distance between an object-side surface of thefirst lens element and an image surface is TL, a maximum image height ofthe photographing optical lens assembly is ImgH, and the followingcondition is satisfied:TL/ImgH≤1.60.
 12. The photographing optical lens assembly of claim 8,wherein a curvature radius of an object-side surface of the first lenselement is R1, a curvature radius of an image-side surface of the firstlens element is R2, and the following condition is satisfied:0.09≤R1/R2<0.2.
 13. The photographing optical lens assembly of claim 8,wherein object-side surfaces and image-side surfaces of the first lenselement, the second lens element, the third lens element, the fourthlens element and the fifth lens element are all aspheric, a sum of axialdistances between each of adjacent lens elements of the seven lenselements is ΣAT, a maximum image height of the photographing opticallens assembly is ImgH, and the following condition is satisfied:0.20<ΣAT/ImgH<0.60.
 14. The photographing optical lens assembly of claim8, wherein the focal length of the photographing optical lens assemblyis f, a focal length of the third lens element is f3, a verticaldistance between a non-axial critical point on the image-side surface ofthe seventh lens element and an optical axis is Yc72, and the followingconditions are satisfied:−0.5<f/f3≤0.26; and0.1<Yc72/f<0.9.
 15. The photographing optical lens assembly of claim 8,wherein an absolute value of a focal length of the fifth lens element issmaller than an absolute value of a focal length of the fourth lenselement.
 16. An image capturing unit, comprising: the photographingoptical lens assembly of claim 8; and an image sensor disposed on animage surface of the photographing optical lens assembly.
 17. Anelectronic device, comprising: the image capturing unit of claim
 16. 18.A photographing optical lens assembly comprising seven lens elements,the seven lens elements being, in order from an object side to an imageside, a first lens element, a second lens element, a third lens element,a fourth lens element, a fifth lens element, a sixth lens element and aseventh lens element; wherein the first lens element has positiverefractive power, the fourth lens element has negative refractive power,and at least one of an object-side surface and an image-side surface ofthe seventh lens element has at least one inflection point; wherein anAbbe number of the second lens element is V2, a maximum refractive indexamong the seven lens elements is Nmax, a focal length of thephotographing optical lens assembly is f, an entrance pupil diameter ofthe photographing optical lens assembly is EPD, and the followingconditions are satisfied:V2≤21.4;1.640≤Nmax<1.750; and1.2<f/EPD≤2.0.
 19. The photographing optical lens assembly of claim 18,wherein the second lens element has an object-side surface being convexin a paraxial region thereof and an image-side surface being concave ina paraxial region thereof.
 20. The photographing optical lens assemblyof claim 18, wherein the third lens element has an object-side surfacebeing convex in a paraxial region thereof.
 21. The photographing opticallens assembly of claim 18, wherein half of a maximal field of view ofthe photographing optical lens assembly is HFOV, the focal length of thephotographing optical lens assembly is f, a curvature radius of animage-side surface of the third lens element is R6, and the followingconditions are satisfied:37.6[deg.]≤HFOV<45[deg.]; and−1.0<f/R6<2.5.
 22. The photographing optical lens assembly of claim 18,wherein the focal length of the photographing optical lens assembly isf, a curvature radius of an image-side surface of the third lens elementis R6, and the following condition is satisfied:−0.31≤f/R6≤0.12.
 23. The photographing optical lens assembly of claim18, further comprising an aperture stop disposed between an imagedobject and the second lens element, wherein the image-side surface ofthe seventh lens element has at least one inflection point, a centralthickness of the first lens element is CT1, a central thickness of thesecond lens element is CT2, and the following condition is satisfied:1.85≤CT1/CT2≤3.33.
 24. The photographing optical lens assembly of claim18, wherein an absolute value of a focal length of the fifth lenselement is smaller than an absolute value of a focal length of thefourth lens element.
 25. A photographing optical lens assemblycomprising seven lens elements, the seven lens elements being, in orderfrom an object side to an image side, a first lens element, a secondlens element, a third lens element, a fourth lens element, a fifth lenselement, a sixth lens element and a seventh lens element; wherein thefirst lens element has positive refractive power, and at least one of anobject-side surface and an image-side surface of the seventh lenselement has at least one inflection point; wherein an Abbe number of thesecond lens element is V2, a maximum refractive index among the sevenlens elements is Nmax, a focal length of the photographing optical lensassembly is f, an entrance pupil diameter of the photographing opticallens assembly is EPD, an axial distance between the second lens elementand the third lens element is T23, an axial distance between the thirdlens element and the fourth lens element is T34, and the followingconditions are satisfied:V2≤21.4;1.640≤Nmax<1.750;1.2<f/EPD≤2.0; and0.5<T23/T34<4.5.
 26. The photographing optical lens assembly of claim25, wherein the second lens element with negative refractive power hasan image-side surface being concave in a paraxial region thereof, theseventh lens element has negative refractive power, and the third lenselement has an object-side surface being convex in a paraxial regionthereof.
 27. The photographing optical lens assembly of claim 25,wherein the fifth lens element has an image-side surface being convex ina paraxial region thereof, the focal length of the photographing opticallens assembly is f, a vertical distance between a non-axial criticalpoint on the image-side surface of the seventh lens element and anoptical axis is Yc72, and the following condition is satisfied:0.1<Yc72/f<0.9.
 28. The photographing optical lens assembly of claim 25,wherein the axial distance between the second lens element and the thirdlens element is T23, the axial distance between the third lens elementand the fourth lens element is T34, and the following condition issatisfied:0.5<T23/T34≤2.41.
 29. The photographing optical lens assembly of claim25, wherein an axial distance between the first lens element and thesecond lens element is T12, the axial distance between the second lenselement and the third lens element is T23, the axial distance betweenthe third lens element and the fourth lens element is T34, an axialdistance between the fourth lens element and the fifth lens element isT45, an axial distance between the fifth lens element and the sixth lenselement is T56, an axial distance between the sixth lens element and theseventh lens element is T67, and the following condition is satisfied:0<(T12/T23)+(T34/T45)+(T56/T67)≤1.42.
 30. The photographing optical lensassembly of claim 25, wherein the image-side surface of the seventh lenselement has at least one inflection point, the focal length of thephotographing optical lens assembly is f, a focal length of the firstlens element is f1, a focal length of the second lens element is f2, afocal length of the third lens element is f3, a focal length of thefourth lens element is f4, a focal length of the fifth lens element isf5, a focal length of the sixth lens element is f6, a focal length ofthe seventh lens element is f7, a focal length of the j-th lens elementis fj, a maximum absolute value among the ratios of f/f1, f/f2, f/f3,f/f4, f/f5, f/f6 and f/f7 is |f/fj|max, and the following condition issatisfied:|f/fj|max<1.8, wherein j=1,2,3,4,5,6,7.
 31. The photographing opticallens assembly of claim 25, wherein a focal length of the first lenselement is f1, a focal length of the second lens element is f2, theaxial distance between the second lens element and the third lenselement is T23, a central thickness of the second lens element is CT2,and the following conditions are satisfied:|f1/f2|≤0.5; and0.3<T23/CT2≤1.53.
 32. The photographing optical lens assembly of claim25, wherein a curvature radius of an object-side surface of the sixthlens element and a curvature radius of an image-side surface of thesixth lens element have the same sign.
 33. A photographing optical lensassembly comprising seven lens elements, the seven lens elements being,in order from an object side to an image side, a first lens element, asecond lens element, a third lens element, a fourth lens element, afifth lens element, a sixth lens element and a seventh lens element;wherein the first lens element has positive refractive power, theseventh lens element with negative refractive power has an object-sidesurface being concave in a paraxial region thereof and an image-sidesurface being concave in a paraxial region thereof, and the image-sidesurface of the seventh lens element has at least one inflection point;wherein an absolute value of a focal length of the third lens element isa maximum among absolute values of focal lengths of all lens elements,an absolute value of a focal length of the first lens element is smallerthan an absolute value of a focal length of the sixth lens element;wherein a maximum refractive index among the seven lens elements isNmax, and the following condition is satisfied:1.640≤Nmax<1.750.
 34. The photographing optical lens assembly of claim33, wherein the third lens element has an object-side surface beingconvex in a paraxial region thereof.
 35. The photographing optical lensassembly of claim 33, wherein an axial distance between an object-sidesurface of the first lens element and an image surface is TL, a maximumimage height of the photographing optical lens assembly is ImgH, and thefollowing condition is satisfied:TL/ImgH≤1.69.
 36. The photographing optical lens assembly of claim 33,wherein at least three of the seven lens elements have positiverefractive power, the focal length of the first lens element is f1, afocal length of the seventh lens element is f7, a curvature radius of anobject-side surface of the first lens element is R1, a curvature radiusof an image-side surface of the first lens element is R2, and thefollowing conditions are satisfied:|f1/f2<3.0; and−0.2<R1/R2<0.2.
 37. The photographing optical lens assembly of claim 33,wherein an axial distance between the first lens element and the secondlens element is T12, an axial distance between the second lens elementand the third lens element is T23, an axial distance between the thirdlens element and the fourth lens element is T34, an axial distancebetween the fourth lens element and the fifth lens element is T45, anaxial distance between the fifth lens element and the sixth lens elementis T56, an axial distance between the sixth lens element and the seventhlens element is T67, and the following condition is satisfied:0<(T12/T23)+(T34/T45)+(T56/T67)<3.8.
 38. The photographing optical lensassembly of claim 33, wherein an axial distance between the second lenselement and the third lens element is T23, a central thickness of thesecond lens element is CT2, and the following condition is satisfied:0.3<T23/CT2<3.0.